備份光碟到電腦裡，用那種格式的映像檔比較好呢?
ISO格式 或 MDF/MDS格式
A:
ISO image
An ISO image (International Organization for Standardization) is an archive file (also known as a disc image) of an optical disc, composed of the data contents of every written sector of an optical disc, including the optical disc file system. ISO images can be created from optical discs or from a collection of files by image creation software; images can be used to write optical discs. Software distributed on bootable discs is often available for download in ISO image format, and used to write a CD or DVD. ISO image files often have a file extension of .iso. The name ISO is taken from the ISO 9660 file system used with CD-ROM media, but what is known as an ISO image might also contain a UDF (ISO/IEC 13346) file system or a DVD orBlu-ray Disc (BD) image.
ISO image 資料來源出自WIKI :
http://en.wikipedia.org/wiki/ISO_image
MDF/MDS file
An MDF file is a disc image file that may hold the contents of an optical disc such as a CD or a DVD.An MDS file accompanies each MDF file. It is an optional media descriptor file that contains metadata about the original media.
MDF/MDS file pairs may be created by optical disc imaging applications such as Alcohol 120% and Daemon Tools.
The MDS format is a binary file that contains metadata such as the position of the layer breaks or layer breach bit, a property of the copy protection feature of optical discs. Magic number "MEDIA DESCRIPTOR" appears at the beginning of the file. An MDS file is used in conjunction with its related MDF disc image.
MDF/MDS file資料來源出自WIKI :
補充:
ISO files are a standardized format of file, with a particular sector size. Pretty much any disc that doesn't have some weird-oh physical characteristics or protection can be stored as an ISO. However, there are other reasons to use the other types. For the MOST part, however, ISOs are just fine.
BIN/CUE files are similar to ISOs with a couple key differences. First, the sector size is different. Second, the CUE file is used to keep track of the number of tracks, the track gaps, the track formats, etc. This allows a little more flexibility in the file. For example, Exact Audio Copy rips CD's as one big WAV file... and a CUE file. The CUE file tells the program where to put the track gaps, etc.
MDS/MDF files are VERY different. This format can keep track of PHYSICAL characteristics of the disc. This includes subchannel data, physical disc errors (i.e. copy protection), etc.
http://club.myce.com/f34/image-type-differences-168723/
ISO files are a standardized format of file, with a particular sector size. Pretty much any disc that doesn't have some weird-oh physical characteristics or protection can be stored as an ISO. However, there are other reasons to use the other types. For the MOST part, however, ISOs are just fine.
BIN/CUE files are similar to ISOs with a couple key differences. First, the sector size is different. Second, the CUE file is used to keep track of the number of tracks, the track gaps, the track formats, etc. This allows a little more flexibility in the file. For example, Exact Audio Copy rips CD's as one big WAV file... and a CUE file. The CUE file tells the program where to put the track gaps, etc.
MDS/MDF files are VERY different. This format can keep track of PHYSICAL characteristics of the disc. This includes subchannel data, physical disc errors (i.e. copy protection), etc.
http://club.myce.com/f34/image-type-differences-168723/
MDF:主檔包含光碟內主要內容(檔案較大)
MDS:伴隨MDF產生的附檔，包含光碟資料屬性，光碟的防拷措施
Nero Burning ROM產生 *.NRG
CloneCD產生 *.CCD和*.IMG
虛擬光碟7.x 產生 *.VCD
Alcohol 120%(酒精)產生 *MDS和*.MDF
無音軌單純要資料就壓制成ISO
要接近完整複製就用酒精那類的映像檔壓制工具
http://tw.knowledge.yahoo.com/question/question?qid=1608072412758
要燒出一比一原版光碟或許會選擇MDF/MDS的方式呈現(ex::包含防拷的措施)
而ISO算最廣泛通用的格式
http://twed2k.org/viewthread.php?action=printable&tid=296797
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