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if you are using a 80 min cdr you can
use a 554 mb Track dummy for audio/data instead of audio.raw
or a 551,mb Track dummy for audio/data instead of mode2.raw
or a 535 mb file dummy for audio/data and data/data
or a 491 mb file dummy for the 45000 trick
my 80 min disks have a playtime of 79,59:73
1 second playtime is 75 sectors
so that are 79*60*75 + 59*60 +73 sectors
= 359998 sectors
you need lead in +pregap +min. track length + lead out
4500 150 300 6750
= 11700 sectors for the first session
and lead in + your data + lead out +2run_out frames
4500 + xxxxx 2250 2
= 6752 sectors for the 2.nd session
so whatever cdr you use, you loose 18452 sectors
for making a multisession cd
359998 - 18452 - playtime
(or the bytes used by the files in
your data directory/2336)
eg. 21min =60*75*21=94500 sectors
359998 - 18452-94500
=247046 sectors unused
make a 247046*2352 bytes +300*2352 bytes =581.757.792 bytes
file for a audio track dummy (for audio/data)
or 247046*2336 bytes + 300*2336 bytes=577.800.256 bytes
file for a data trackdummy (for data/data)
or
make a 247046*2336 =561.171.456 bytes file for a file dummy
or 515.083.328 byte file dummy if you are using the 45000 trick
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