[Cdrtools-developers] Fwd: An issue about cdrtools

[st xu <xu....@gm...>]

---------- Forwarded message ---------
发件人： st xu <xu....@gm...>
Date: 2021年3月19日周五 上午6:27
Subject: An issue about cdrtools
To: <joe...@fo...>


Hi Schilling,
  Sorry to bother you, I'm a noob with the cdrtools, and I've met an issue
that I cannot append files to a *DVD-R* disc which was burned on Windows by
Windows Explorer with the *CD/DVD mode.*
  and here are my commands:
// 1. get the start sector no.
*cdrecord -msinfo -dev /dev/sr0*
// 2. make an iso with -C -M
*mkisofs -J -udf -C 0,93952 -M /dev/sr0 -V mki_burn -v -o image.iso
somefiles*
  then an error occurred:
    *mkisofs: unable to find previous session PVD '/dev/sr0'*
  so i cannot accomplish my expectation.
this is the result of cd_session command for this nonempty disc.
[image: image.png]

  and sometimes I will get a cdrecord error while appending files to an
nonempty disc using the command: *cdrecord -multi -eject -v -dev /dev/sr0
targetIsoFile*:
*    cdrecord: Data does not fit on current disk.*
  I followed the codes and found that cdrecord cannot get the correct block
size of disc, in file drv_dvd.c,
[image: image.png]
  after converting uchar to ulong, the nonzero value turned zero, so the
next process will abort.

  I'm looking for something which could support appending files to a
nonempty disc which was burned on windows before then I found your project,
and the manpage said this project supports udf hybrid file system, I think
it will be useful until i met the issue.
  Could you please give me some advice about how to solve these problems or
how to append files to a nonempty disc which was burned on windows before?
Or could you please let me know how to contact Schilling? Really need to
solve this. I'll be very grateful.
  Thank you anyway. Expect your reply.