[Quoting Joerg Schilling, on February 26 2001, 22:27, in "Re: Here's the GOOD "]
> >> I have no idea where this comes from. .... maybe from "notification
> >> on change" that send another command at the same time by the OS.
> 
> >I have insert notification turned off.
> 
> But do you know if the OS stops sending SCSI commands in this case?

OS = Windows 98 Second Edition. With millions of users it should be
common knowledge if it does. (I don't know, I try to avoid Windows.)

> >Hmm. I wrote a CD image, and it came out exactly 2048 bytes too short.
> >I tried it on two different CD's (a 4x CD-R and a 2x CD-RW).
> >Coincidence? cdrecord gave no errors (see log), though.
> 
> If you don't send enough debug information, it is not possible to verify
> this statement. I cannot believe it, as it is higly unprobale...

Inspection shows that all files on the CD are accessible and
apparently correct. I tried "find . -type f -print | xargs md5sum".
The problem shows only when comparing the CD with the image, e.g., 
"dd if=/dev/hdc | cmp - image.iso". Maybe it is the "read ahead" bug?

You tell me which options I need to pass to cdrecord for the desired
debugging information and I'll try to reproduce it.

-- Johan


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