If you're looking to convert to another format, then iso is just the 2048 byte part of the data track and PREGAP in a cue file should only be used if the data sectors for it are not in the binary image. I've seen Index2 used as the postgap marker in which case it's joined by a P blanking period but it is really just like a bookmark in a track - more often used during classical music where you might want to skip to a movement within a single piece. 1 is the track itself which starts on the last P sector with all 1 data and timecode 0. This is the Pregap (It's configurable but defaults to 2s or 150 sectors). If you look at the subcode, you'll see that Index 0 occurs during the P blanking period and Q contains a timecode which is counting down frames from 1.75 or thereabouts. Thanks for helping me better understanding CCD file structure and description. Is it possible to have the same layout for a track in mode = 1 or mode = 2 or is it only for audio tracks ? If yes, what could mean all those indexes ? Is it possible to have something like that : Now I suppose INDEX 0 means a sort of pregap starting at sector M for audio track 1 where sound really start at sector N, but it’s a guess.

I know that it means Track one is Mode 2 data type and start at sector 0.īut sometimes the descriptive block comes like these : What is the meaning of each value of each keywords ?Įach track of each session described in CCD file use the descriptive block below : In the session section of CCD file there are always two keywords “PreGapMode” and “PreGapSubC” like below : I have crawled the web but I found no clearly accurate information about that. I have some questions about the meaning of some keywords attributes in a common CCD file for CloneCD 3 or 4.

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