About CloneCD CCD file format questions

discspeed

#1

Hello everyone,

I have some questions about the meaning of some keywords attributes in a common CCD file for CloneCD 3 or 4.

I have crawled the web but I found no clearly accurate information about that.

Question 1)

In the session section of CCD file there are always two keywords “PreGapMode” and “PreGapSubC” like below :

[Session 1]
PreGapMode=N
PreGapSubC=M

where N is in [0,1,2]
where M is in [0,1]

What is the meaning of each value of each keywords ?

Question 2)

Each track of each session described in CCD file use the descriptive block below :

[TRACK 1]
MODE=2
INDEX 1=0

I know that it means Track one is Mode 2 data type and start at sector 0.

But sometimes the descriptive block comes like these :

[TRACK 1]
MODE=0
INDEX 0=M
INDEX 1=N

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.
Is it right ?

Is it possible to have something like that :

[TRACK 1]
MODE=0
INDEX 0=0
INDEX 1=N
INDEX 2=M
ans so one …

If yes, what could mean all those indexes ?

Is it possible to have the same layout for a track in mode = 1 or mode = 2 or is it only for audio tracks ?

Thanks for helping me better understanding CCD file structure and description.

Good day to all