saramibreak / DiscImageCreator

This is the disc (CD, GD, DVD, HD-DVD, BD, GC/Wii, XBOX, XBOX 360) and disk (Floppy, MO, USB etc) image creation tool
http://forum.redump.org/topic/10483/discimagecreator/
Apache License 2.0
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Q: Is this Audio CD dump correct? #175

Closed Feathered-Serpent closed 1 year ago

Feathered-Serpent commented 1 year ago

Heya,

just got a new Audio CD and made a dump with DIC and a PLEXTOR PX-W4012A

Now I noticed these things in the DIC files: _disc.txt:

========== Offset (Drive offset refers to http://www.accuraterip.com) ==========
     Combined Offset(Byte)    392, (Samples)    98
    -   Drive Offset(Byte)    392, (Samples)    98
    ----------------------------------------------
           CD Offset(Byte)      0, (Samples)     0
    Overread sector: 1
    SubChannel Offset: 0

Overread sector? Is this a bad thing?

_subinfo.txt: a message like this one is shown for each track (with different sector amounts):

P-channel pregap size (00:02:00) vs Q-channel pregap size (00:01:10) mismatch [65 sector(s)]

Just want to see, if anything could be wrong with the dump.

Logfiles: DIC Logs.zip

saramibreak commented 1 year ago

Overread sector? Is this a bad thing?

No. To read 392 bytes, 1 sector is overreaded. Btw, if you search the CD Offset for audio cd, use /vrfy 1 (https://github.com/saramibreak/DiscImageCreator/wiki#dumping-guide-for-audio-cd)

_subinfo.txt:

Some discs don't match p vs q pregap size. It's no problem.

Feathered-Serpent commented 1 year ago

Thanks for the info. Case closed.