kern/65420: acd cannot write DVD-RW

[Arne Woerner]

>Number:         65420
>Category:       kern
>Synopsis:       acd cannot write DVD-RW
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Apr 10 16:50:18 PDT 2004
>Closed-Date:
>Last-Modified:
>Originator:     Arne Woerner
>Release:        5.2-CURRENT-20040408
>Organization:
>Environment:
FreeBSD neo.riddick.homeunix.org 5.2-CURRENT-20040408-JPSNAP FreeBSD 5.2-CURRENT-20040408-JPSNAP #4: Fri Apr  9 17:57:06 GMT 2004     aw at neo.riddick.homeunix.org:/usr/src/sys/i386/compile/DAREDEVIL  i386

>Description:
R5.1 was able to write DVD-RW via
  dd of=/dev/acd1 bs=65536
but
5-CURRENT isn't.
acd1 is a DVDR <TOSHIBA DVD-ROM SD-R5112> at ata1-master PIO4.

I would prefer the R5.1 behaviour in this point (because I do incremental backups on DVD)...
>How-To-Repeat:
> dd of=/dev/acd1 bs=65536
dd: /dev/acd1: Input/output error
1+0 records in
0+0 records out
[...]
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: