Need help with determining the write offset

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whirljack
Posts: 9
Joined: Mon Jun 08, 2026 1:26 am

Need help with determining the write offset

Post by whirljack »

Hello all,

I'm attempting to dump my very first game ever.  The CD dumping guide here is great, but I'm a bit stumped by one part:

I'm trying to determine the write offset.  I've got sector view in ISObuster open and I'm looking at the correct sector.  In it, I've got 12 rows of full data and exactly 1/2 of a row of data after that.  What number do I use?  Is this 16 bytes * 12 rows, 12.5 rows or 13 rows?

thanks!
DJoneK
Posts: 222
Joined: Mon Jun 08, 2026 1:26 am

Re: Need help with determining the write offset

Post by DJoneK »

12.5

Remember to factor in your drive's offset to determine the write offset of the disc.  Use 50 on EAC when dumping that disc tracks though.

12.5*16/4=50 sample offset

So if your drive has a +48 offset, the disc has a +2 write offset value.


Anyone correct me if I'm wrong.. Never dumped audio tracks before since my drives can't read into lead in/out Image
Last edited by DJoneK on Thu Aug 27, 2009 10:05 pm, edited 1 time in total.
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whirljack
Posts: 9
Joined: Mon Jun 08, 2026 1:26 am

Re: Need help with determining the write offset

Post by whirljack »

That's what I was thinking... just wanted to double-check, though, before dumping anything.  Thanks!
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