CN1925047A - Storage media, its storage capacity representation, information storage and its data storage/access method - Google Patents

Storage media, its storage capacity representation, information storage and its data storage/access method Download PDF

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Publication number
CN1925047A
CN1925047A CN 200510029372 CN200510029372A CN1925047A CN 1925047 A CN1925047 A CN 1925047A CN 200510029372 CN200510029372 CN 200510029372 CN 200510029372 A CN200510029372 A CN 200510029372A CN 1925047 A CN1925047 A CN 1925047A
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Prior art keywords
information
storage medium
storage
memory capacity
mentioned
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CN 200510029372
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Chinese (zh)
Inventor
朴容彻
郑圭和
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Shanghai LG Electronics Co Ltd
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Shanghai LG Electronics Co Ltd
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Priority to CN 200510029372 priority Critical patent/CN1925047A/en
Publication of CN1925047A publication Critical patent/CN1925047A/en
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Abstract

This invention relates to memory medium and its method to express information memory, which determines memory volume through default type during medium process and stores it to the data area and gets formatted variable memory volume information and constant volume information into the guide repeated memory data vacant area; then according to the memory volume variable status, and referring above protruding data area or repeated area vacant area for storing information to execute data memory and reading operations.

Description

Storage/the read method of the expression of storage medium and memory capacity thereof and the storage of information and data
Technical field
The invention relates to the technology of storage medium system.Specifically, be exactly about the variable optical storage medium of memory capacity, the memory capacity method for expressing, the storage capacity information storage means, and utilize the data storage of this method/and the invention of read method.
Background technology
Generally speaking, for optical storage medium, according to the situation that whether can carry out duplicate record, it roughly can be divided into following several: promptly read special-purpose ROM type, can carry out the WORM type of 1 property storage, but and 3 kinds of rewriting type etc. can carrying out repeated storage.
Here, the optical storage medium of ROM type has following several: i.e. CD drive (CompactDisc Read Only Memory:CD-ROM) and digital versatile disc storer (DigitalVersatile Disc Read Only Memory:DVD-ROM) etc.ROM type optical storage medium has following several: the CD that can carry out the storage of 1 property is CD-R driver (RecordableCompact Disc:CD-R) and the digital versatile disc (RecordableDigital Versatile Disca:DVD-R) that can carry out the storage of 1 property etc.
In addition, for the CD that can freely carry out data storage repeatedly, it roughly has following several: i.e. CD-RW (Rewritable Compact Disc:CD-RW) and can rewrite digital versatile disc (Rewritable Digital Versatile Disc:DVD-RW) etc.
Fig. 1 is the synoptic diagram of the structure of the above-mentioned CD-RW of expression.As can be seen from the figure, the most inboard from along its radial direction is divided into ingress area (lead-inarea), data storage areas (data area data area), export area (lead-out area) successively.
Here, for above-mentioned data storage areas, in order to realize storing at random with its with the circle (zone) be that unit carries out partition management.Then, its each circle is divided into the user area of actual storage data again and when defective appears in above-mentioned user area and utilizable spare area (spare).
In addition, for above-mentioned ingress area, as shown in Figure 2, it is made of following components: the data area that convexes to form (embossed data zone), reflector space (mirror zone), and the zone (rewitable data zone rewritable data zone territory) that can store data again.For the above-mentioned data area that convexes to form (embossed data zone), it has formed the preformat zone with regard to having carried out preformatting (preformat) in the manufacturing process of CD.Therefore, storage data in the above cannot change.Here, the version of the above-mentioned data area that convexes to form (embossed data zone) is as follows: i.e. white space (blankzone), reference signal zone (reference signal zone), white space (blank zone), control data zone (control data zone), white space (blank zone).
Above-mentioned control data zone comprises the data area (embossed data zone) that convexes to form.And the data area comprises the control data zone that convexes to form.Here, above-mentioned control data is made of 192 ECC (error correction code) assembly.As shown in Figure 3, in above-mentioned each ECC (error correction code) assembly, can carry out 192 storages repeatedly to the content of 16 sectors.The formatted message (physical format information) that in first sector of above-mentioned each assembly, includes physics here.Include making information (disc manufacturing information) about CD second sector.And remaining sector is exactly also untapped sector.
In addition, for the above-mentioned data area that can carry out repeated storage, it is the zone of variable control information being write down again by the repeated storage to data.It is made of following components: protection tracing area (guard track zone), CD surveyed area (disc test zone), drive surveyed area (drive test zone), the protection tracing area, CD ID (identification) zone, defect management (the defectmanagement area:DMA1﹠amp that the defective of CD is managed; DMA2).
As mentioned above, this capacity of optical storage is divided into 2.6G (G index according to storage cell, i.e. byte), 4.5G, and 4.7G etc. are good several.It normally determines its memory capacity by the track pitch (track pitch) of distance between the row of performance depression.
But, even the size of track pitch (track pitch) or CD (for example: 8cm, 12cm) identical, the different situation of memory capacity of CD also may appear.For example: in the manufacturing process of CD or when the user carries out reformatting to CD, be used as the user area if will store the spare area in the zone of data, or the export area is used as the user area.So, for the CD of same type or the CD of identical size, even its track pitch (track pitch) is identical, the memory capacity of CD also can have nothing in common with each other.
In this case, only by its track pitch (track pitch) or only the size by CD be its memory capacity of there is no telling.
In this case, the user just can not carry out correct storage and reads data.
Summary of the invention
Therefore, purpose of the present invention proposes for addressing the above problem.The objective of the invention is to for the user provides a kind of memory capacity method for expressing of storage medium and the recording method of storage capacity information, thereby can represent the storage capacity information in the ingress area that is stored in storage medium.
Another object of the present invention is to provide a kind of storage medium with the storage capacity information that shows by above-mentioned memory capacity method for expressing for the user.
In addition, a further object of the invention, that is exactly the data storage/read method of the storage medium data being stored and read for the storage capacity information that the user provides a kind of basis to show on storage medium.
To achieve these goals, the storage medium with storage capacity information according to embodiments of the invention has following feature: it includes the information that storage capacity information is shown on storage medium.In addition, above-mentioned storage capacity information comprises following 2 parts: promptly comprise the 1st information of the fixed storage capacity that shows above-mentioned storage medium and the 2nd information of the variable memory capacity that shows above-mentioned storage medium.Above-mentioned the 1st storage capacity information and above-mentioned the 2nd storage capacity information can be come out by the mutually different position display of above-mentioned storage medium.
Foundation storage medium of the present invention system also has following feature: promptly above-mentioned storage capacity information can show on the ingress area of storage medium.
Also have following feature according to storage medium of the present invention system: promptly above-mentioned the 1st information writes down in advance at storage medium on the zone of (pre-recorded) and shows, but and above-mentioned the 2nd information is to show on the posting field of storage medium.
Foundation storage medium of the present invention system also has following feature: promptly above-mentioned storage medium also comprises memory capacity the 3rd the information whether variable identifying information that shows shows together to storage medium.
Foundation storage medium of the present invention system also has following feature: promptly can the spare area that replace the defect area on the storage medium be distributed or change according to radius according to above-mentioned the 2nd information.
Foundation storage medium of the present invention system also has following feature: promptly can the memory capacity of the user data area except that the spare area of above-mentioned distribution or change be shown according to above-mentioned the 2nd information.
Foundation storage medium of the present invention system also has following feature: promptly above-mentioned spare area comprises the auxiliary standby zone.
Foundation storage medium of the present invention system also has following feature: promptly above-mentioned auxiliary standby zone is exactly the individual zone that begins to remove the appropriate section zone from above-mentioned user data area.Above-mentioned the 2nd information is exactly the information except that above-mentioned auxiliary standby area information.
Memory capacity display packing according to storage medium of the present invention has following feature, be that it comprises the steps: that is to say, for for user data area and default storage capacity are shown, and concerning the method that the storage capacity information of the storage medium of the 1st information with prior storage (pre-recorded) form is represented, under the situation that the memory capacity of above-mentioned storage medium changes, for the memory capacity that is changed is represented, but and with the 2nd information stores to the storage area of above-mentioned storage medium with the different locational step in position of above-mentioned the 1st information of record.
Also have following feature according to the memory capacity display packing of storage medium of the present invention, promptly it also comprises the steps: to be that it comprises that also the step that the 3rd information that the situation of change represents writes down takes place for memory capacity to storage medium.
Memory capacity display packing according to storage medium of the present invention also has following feature, and promptly above-mentioned the 1st information is to represent the information of the capacity of about 4.7GB.
Memory capacity display packing according to storage medium of the present invention also has following feature, and promptly above-mentioned the 1st information is exactly the information that the whole capacity of the user data area of above-mentioned storage medium is represented.
Storage capacity information method for expressing according to storage medium of the present invention has the feature that is made of following step, that is to say, for the storage capacity information that includes on the specific region that is stored in storage medium, the method that the memory capacity of the storage medium that comprises fixed storage capacity information and variable storage capacity information is shown by above-mentioned storage capacity information, it comprises following step: i.e. the 1st step judged of the situation that whether can change the memory capacity of above-mentioned storage medium; According to the judged result of above-mentioned the 1st step, can change if judge the memory capacity of storage medium, then the 2nd step that above-mentioned variable storage capacity information is upgraded.
Also have following feature according to the storage capacity information method for expressing of storage medium of the present invention, promptly can whether carry out the spare area that replaces the defect area on the storage medium distributing or the situation of having carried out changing is judged in above-mentioned the 1st step.
Storage capacity information method for expressing according to storage medium of the present invention also has following feature, and promptly above-mentioned variable storage capacity information can be stored identifying information together.
Also have following feature according to the storage capacity information method for expressing of storage medium of the present invention, promptly under the situation that the memory capacity of above-mentioned storage medium changes, above-mentioned identifying information just can change and set.
Also have following feature according to the storage capacity information method for expressing of storage medium of the present invention, promptly above-mentioned spare area is exactly the auxiliary standby zone, and it is meant from user data area and begins to remove zone behind the appropriate section zone.
Also have following feature according to the storage capacity information method for expressing of storage medium of the present invention, promptly said fixing storage capacity information and above-mentioned variable storage capacity information are stored in respectively on the mutually different position on the above-mentioned storage medium.
Has following feature according to the storage capacity information storage means of storage medium of the present invention:, store variable storage capacity information on the storage area on the above-mentioned storage medium step but it comprises promptly for the method that writes down for storage capacity information concerning the storage medium of the fixed storage capacity information that comprises prior storage (pre-recorded) form that is stored on the storage medium.Above-mentioned variable storage capacity information be stored in the mutually different position of said fixing storage capacity information on.
Has the feature that constitutes by following step according to data storage/read method of the present invention: promptly will comprise the 1st information that the default storage capacity information of storage medium is represented from the storage medium and the 1st step that the storage capacity information of the 2nd information that the storage capacity information after changing is shown reads out; To based on above-mentioned the 1st information that reads out/or the 2nd information, the 2nd step that data storage is controlled to storage medium or with the action that data read out from storage medium.
Also has following feature according to data storage/read method of the present invention: be about to above-mentioned the 1st information and above-mentioned the 2nd information and be stored in respectively on the above-mentioned storage medium on the mutually different position.
Effect of the present invention:
As mentioned above, expression and the storage of information and the storage/read method of data according to storage medium of the present invention and memory capacity thereof, the memory capacity of determining by the acquiescence mode just has been stored in the manufacturing process of storage medium on the untapped subregion of the data area that convexes to form of ingress area, then has been stored in the untapped subregion in the zone that can carry out the repeated storage data in the ingress area by CD being carried out variable storage capacity information and the variable information that has or not of memory capacity that reformatting obtains.Then, according to the variableness of memory capacity, but and with reference to the storage capacity information of not using the subregion stored in the zone of the above-mentioned data area that convexes to form or repeated storage data, and carry out the storage of data and read action.Like this, the user just can grasp well correct capacity data storage and read and moved.Guaranteed the correctness and the stability of information stores, made the storage of data and read to carry out very wellly.Therefore, it is a very useful invention.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the synoptic diagram of the structure of the common CD of expression.
Fig. 2 is the structural representation of expression ingress area shown in Figure 1.
Fig. 3 is the structural representation of the Control Component of expression control data storage area shown in Figure 2.
Fig. 4 a is illustrated in the embodiment that will show on the untapped subregion by the storage capacity information that the acquiescence mode is determined according in the memory capacity method for expressing of the present invention in the storage area of the control data of ingress area.
But Fig. 4 b is illustrated in the foundation storage capacity information method for expressing of the present invention the instance graph that shows on the untapped subregion of variable storage capacity information in the zone of the repeated storage data of ingress area.
Fig. 5 is that expression shows the workflow diagram according to the storage/read method of optical storage medium of the present invention.
Embodiment
Below, with reference to the accompanying drawings formation and effect thereof according to the storage/read method embodiment of the storage of the expression of storage medium of the present invention and memory capacity thereof and information and data are described in detail.
As shown in the figure, simultaneously, also relevant portion is illustrated in front with reference to accompanying drawing.In front, be illustrated by an embodiment at least with regard to formation of the present invention and effect.By above-mentioned explanation as can be seen, the technology of the present invention thought and core constitute and act on unrestricted.
At first, according to embodiments of the invention is example with the storage medium, to CD in manufacturing process, on the untapped subregion in the untapped subregion of the data area that convexes to form of ingress area, the storage capacity information of the CD determined by acquiescence (default) mode is shown.Particularly, shown in Fig. 4 a, the memory capacity of the CD that will in the manufacturing process of CD, determine by the acquiescence mode, indicate on the unused bytes (for example: BP 17~31, or the byte in 33~47) in the 1st sector of the formatted message that comprises physics in the control data assembly in the control data zone of the data area that convexes to form.
After this, when the user carried out reformatting to CD, the memory capacity of CD just can change.That is to say, CD can be formatd processing, the spare area of CD is become after the user area and will do the user zone spare area week of CD; Perhaps CD is formatd processing, the export area of CD is become after the data area and with the export area of CD as the data area.Like this, just can increase the memory capacity of CD.
Therefore, should the memory capacity of the CD after changing be indicated, owing to just can not revise to data in the data area that the ingress area internal projection forms.Therefore, in this case, but just it is shown in the zone of not using part of the repeated storage data area of ingress area.
For example: but it can be shown on the zone of not using part in the ID zone of the CD of repeated storage data area.
For the ID zone of above-mentioned CD, it comprises following components: i.e. sunk area (groove), elevated regions (land), header region (header field), reflector space (mirror field), storage area (recording field).Here, the content in zone is not used more than.Therefore, can and can show that memory capacity has unconverted zone to distribute to the zone that can show memory capacity in the above.The information that variable memory capacity and memory capacity are changed is shown in Fig. 4 b.There is unconverted viewing area the information that memory capacity can not change to be provided with in above-mentioned memory capacity here, by the mode of acquiescence.
Fig. 5 is that expression shows the workflow diagram according to the storage/read method of optical storage medium of the present invention.With reference to Fig. 5 as can be seen:
Step 501 is if change memory capacity according to user's selection and the mode by reformatting.
Step 502, then shown in Fig. 4 b, store into respectively on the information display area territory that can memory capacity viewing area that not using in the data area that can carry out repeated storage of ingress area distribute in the zone and memory capacity change with regard to new storage capacity information and memory capacity there being unaltered information.
For example: if the memory capacity of determining by the acquiescence mode increases through reformatting.So, the memory capacity viewing area and the memory capacity that just the variable information of the storage capacity information that increases and memory capacity are stored into the zone that can carry out the repeated storage data respectively have on the unaltered viewing area.Then, if with the memory capacity that increases by carrying out becoming the memory capacity of determining by the acquiescence mode behind the reformatting.So, in this case, just the information that storage capacity information and memory capacity the are not changed memory capacity viewing area and the memory capacity that store the zone that can carry out the repeated storage data respectively into has on the unaltered viewing area.
Step 503, in this case, whether optical disc storage/reading device has just been selected storage to the user or has been read action and detect.
Step 504 then, according to above-mentioned testing result, has been selected storage or has been read action if judge the user, and then the situation whether the memory capacity variable information has been carried out showing on the variable viewing area of memory capacity detects.
Step 505, in above-mentioned steps 504, if show that memory capacity does not change, the storage capacity information that shows especially in the number zone that then just will be stored in above-mentioned ingress area reads out.Then, again data are stored or read, flow process finishes.
Step 506, on the other hand, in above-mentioned steps 504, if show that variation has taken place memory capacity, the storage capacity information that then will be stored in the carried out repeated storage data area in the ingress area reads out.Then, again data are stored or read, flow process finishes.
For example:, and be 4.7G (G promptly refers to Giga) by the memory capacity that reformatting increases if the memory capacity of determining by the acquiescence mode is 4.5G.So, in above-mentioned steps 505, just can store or read the data of 4.5G size.And in above-mentioned steps 506, just can store or read the data of 4.7G size.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the modification of the above embodiment.

Claims (41)

1, a kind of storage medium is characterized in that comprising:
Include the information that storage capacity information is shown on storage medium, in addition, above-mentioned storage capacity information comprises following 2 parts: comprise the fixed storage capacity that shows above-mentioned storage medium memory capacity the 1st information and show the 2nd information of memory capacity of the variable memory capacity of above-mentioned storage medium;
The 1st information of above-mentioned memory capacity and the 2nd information of above-mentioned memory capacity can be come out by the mutually different position display of above-mentioned storage medium.
2, storage medium as claimed in claim 1 is characterized in that:
Described storage capacity information can show on the ingress area of storage medium.
3, storage medium as claimed in claim 1 is characterized in that:
The 1st information of described memory capacity shows on the zone that described storage medium writes down in advance, but and the 2nd information of above-mentioned memory capacity is to show on the posting field of described storage medium.
4, storage medium as claimed in claim 1 is characterized in that:
Described storage medium also comprises to the memory capacity of storage medium the 3rd information of the memory capacity that the variable identifying information that shows shows together whether.
5, storage medium as claimed in claim 1 is characterized in that:
The 2nd information according to described memory capacity can distribute the spare area that replaces the defect area on the storage medium or change according to radius.
6, storage medium as claimed in claim 5 is characterized in that:
The 2nd information according to described memory capacity can show the memory capacity of the user data area except that the spare area of above-mentioned distribution or change.
7, storage medium as claimed in claim 5 is characterized in that:
Described spare area is exactly the auxiliary standby zone.
8, storage medium as claimed in claim 7 is characterized in that:
Described auxiliary standby zone is exactly the zone that begins to remove the appropriate section zone from above-mentioned user data area, and the 2nd information of above-mentioned memory capacity is exactly the information except that above-mentioned auxiliary standby area information.
9, a kind of memory capacity method for expressing of storage medium is characterized in that comprising the steps:
For for user data area and default storage capacity are shown, and concerning the method that the storage capacity information of the storage medium of the 1st information of memory capacity with prior storage form is represented, under the situation that the memory capacity of above-mentioned storage medium changes, for the memory capacity that is changed is represented, but and with the 2nd information stores of memory capacity to the storage area of above-mentioned storage medium with the different locational step in position of the 1st information of the above-mentioned memory capacity of record.
10, the memory capacity method for expressing of storage medium as claimed in claim 9 is characterized in that also comprising the steps:
The step that the 3rd information of the memory capacity that the situation of change represents writes down is taken place in the memory capacity of storage medium.
11, the memory capacity method for expressing of storage medium as claimed in claim 9 is characterized in that:
The 1st information of described memory capacity is to represent the information of the capacity of 4.7GB.
12, the memory capacity method for expressing of storage medium as claimed in claim 9 is characterized in that:
The 1st information of described memory capacity is exactly the information that the whole capacity of the user data area of above-mentioned storage medium is represented.
13, the memory capacity method for expressing of storage medium as claimed in claim 9 is characterized in that:
The 2nd information of described memory capacity can change along with the distribution of the slack storage area of the defect area that replaces above-mentioned user data area or variation.
14, the memory capacity method for expressing of storage medium as claimed in claim 13 is characterized in that also:
Above-mentioned spare area is exactly the auxiliary standby zone.
15, the memory capacity method for expressing of storage medium as claimed in claim 14 is characterized in that:
Described auxiliary standby zone finger begins to remove the zone of appropriate section from above-mentioned user data area with exactlying, and the 2nd information of above-mentioned memory capacity is to have got rid of the information in above-mentioned auxiliary standby zone at least.
16, a kind of storage medium is characterized in that:
For the storage medium of the ingress area that comprises the zone of dividing into prior storage and the zone that can store, user data area, export area, above-mentioned ingress area comprises the storage capacity information that the memory capacity to above-mentioned storage medium shows; Above-mentioned storage capacity information comprises following 2 kinds of information, promptly is stored in the 1st information of the memory capacity on the above-mentioned prior storage area of above-mentioned storage medium for the fixed storage capacity is shown; And situation about changing for the memory capacity to above-mentioned storage medium shows and is stored in the 2nd information of the memory capacity on the above-mentioned zone that can store of above-mentioned ingress area.
17, storage medium as claimed in claim 16 is characterized in that:
The 2nd information of described memory capacity can be along with the distribution of spare area or variation and is changed.
18, storage medium as claimed in claim 16 is characterized in that:
The 2nd information of described memory capacity above-mentioned auxiliary standby zone be assigned with or situation about expanding under and can change.
19, storage medium as claimed in claim 16 is characterized in that:
The 2nd information of described memory capacity can be stored with identifying information.
20, storage medium as claimed in claim 19 is characterized in that:
Described identifying information just is meant the information whether memory capacity of described storage medium changes.
21, storage medium as claimed in claim 19 is characterized in that:
Change under the situation that described identifying information can change in the memory capacity of described storage medium or set.
22, as storage medium as described in claim 17 or 18, it is characterized in that:
Described spare area or auxiliary standby zone are the zones that begins to remove appropriate section from above-mentioned user data area, and the 2nd information of above-mentioned memory capacity is exactly to remove the information of above-mentioned spare area or the information in auxiliary standby zone.
23, storage medium as claimed in claim 16 is characterized in that:
The 1st information of described memory capacity and the 2nd information of memory capacity can be stored on the mutually different position of above-mentioned storage medium.
24, a kind of memory capacity display packing of storage medium, that is to say, for the storage capacity information that includes on the specific region that is stored in storage medium, the method that the memory capacity of the storage medium that comprises fixed storage capacity information and variable storage capacity information is shown by above-mentioned storage capacity information, it is characterized in that comprising following step:
The 1st step is promptly judged the situation whether memory capacity of above-mentioned storage medium can change;
The 2nd step according to the judged result of above-mentioned the 1st step, can change if judge the memory capacity of storage medium, then above-mentioned variable storage capacity information is upgraded.
25, the memory capacity display packing of storage medium as claimed in claim 24 is characterized in that:
Whether described the 1st step can carry out the spare area that replaces the defect area on the storage medium distributing or the situation of having carried out changing is judged.
26, the memory capacity display packing of storage medium as claimed in claim 24 is characterized in that:
Described variable storage capacity information can be stored identifying information together.
27, the memory capacity display packing of storage medium as claimed in claim 26 is characterized in that:
Under the situation that the memory capacity of described storage medium changes, above-mentioned identifying information just can change and set.
28, the memory capacity display packing of storage medium as claimed in claim 25 is characterized in that:
Described spare area is exactly the auxiliary standby zone, and it is meant from user data area and begins to remove zone behind the appropriate section zone.
29, the memory capacity display packing of storage medium as claimed in claim 24 is characterized in that:
Described fixed storage capacity information and above-mentioned variable storage capacity information are stored in respectively on the mutually different position on the above-mentioned storage medium.
30, a kind of storage capacity information storage means of storage medium is characterized in that comprising:
For the method that the storage capacity information that comprises the storage medium that is stored in the prior storage form fixed storage capacity information on the storage medium is write down, store variable storage capacity information on the storage area on the above-mentioned storage medium step but it comprises, above-mentioned variable storage capacity information be stored in the mutually different position of said fixing storage capacity information on.
31, the storage capacity information storage means of storage medium as claimed in claim 30 is characterized in that:
Described variable storage capacity information the spare area of the defect area that replaces above-mentioned user data area be assigned with or situation about changing under can change.
32, the storage capacity information storage means of storage medium as claimed in claim 31 is characterized in that:
Described spare area is exactly the auxiliary standby storage area.
33, the storage capacity information storage means of storage medium as claimed in claim 32 is characterized in that:
Described variable storage capacity information is exactly the storage capacity information except that above-mentioned auxiliary standby zone.
34, as described in the claim item 30, the storage capacity information storage means according to the storage medium of embodiments of the invention is characterized in that further comprising the steps of:
The step that the identifying information whether memory capacity that shows above-mentioned storage medium is changed is stored.
35, the storage capacity information storage means of storage medium as claimed in claim 34 is characterized in that:
Under the situation that the memory capacity of described storage medium changes, system will store showing the above-mentioned identifying information that memory capacity changes.
36, a kind of data storage/read method of storage medium is characterized in that being made of following step:
The 1st step promptly will comprise the 1st information of the memory capacity that the default storage capacity information of storage medium is represented from the storage medium and the storage capacity information of the 2nd information of memory capacity that the storage capacity information after changing is shown reads out;
The 2nd step to based on the 1st information of the above-mentioned memory capacity that reads out or the 2nd information of memory capacity, is controlled data storage to storage medium or with data from the action that storage medium reads out.
37, the data storage/read method of storage medium as claimed in claim 36 is characterized in that:
The 2nd information of the 1st information of described memory capacity and described memory capacity is stored in respectively on the above-mentioned storage medium on the mutually different position.
38, the data storage/read method of storage medium as claimed in claim 37 is characterized in that:
The 1st information of described memory capacity is to represent the information of the capacity of 4.7GB.
39, the data storage/read method of storage medium as claimed in claim 37 also is characterized in that:
The 1st information stores of described memory capacity and can be with the 2nd information stores can carry out on the zone of data storage to above-mentioned storage medium of described memory capacity on the prior storage area of above-mentioned storage medium.
40, the data storage/read method of storage medium as claimed in claim 39 is characterized in that:
Described the 2nd information the spare area on the above-mentioned storage medium be assigned with or situation about changing under can change.
41, the data storage/read method of storage medium as claimed in claim 40 is characterized in that:
Described spare area is meant from above-mentioned user data area and begins to remove zone outside the appropriate section zone, and the 2nd information of above-mentioned memory capacity is meant the storage capacity information of the user data area except that the information of above-mentioned spare area.
CN 200510029372 2005-09-02 2005-09-02 Storage media, its storage capacity representation, information storage and its data storage/access method Pending CN1925047A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200510029372 CN1925047A (en) 2005-09-02 2005-09-02 Storage media, its storage capacity representation, information storage and its data storage/access method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200510029372 CN1925047A (en) 2005-09-02 2005-09-02 Storage media, its storage capacity representation, information storage and its data storage/access method

Publications (1)

Publication Number Publication Date
CN1925047A true CN1925047A (en) 2007-03-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
CN (1) CN1925047A (en)

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