External DVD burner - connected via USB.

[O. Hartmann]

Stefan Lambrev wrote:
> 
> 
> Daniel O'Connor wrote:
>> On Wednesday 04 October 2006 20:33, Stefan Lambrev wrote:
>>  
>>> Is this supposed to work under FreeBSD 6.X amd64 at all ?
>>>     
>>
>> Did you actually try using it?
>>
>>   
> Of course :) and it does not work - can't mount, read, write and so on.
> Checked under other os - it works so it is not HW problem.
> 
> This is from mount:
> 
> cd0 at umass-sim0 bus 0 target 0 lun 0
> cd0: <PLEXTOR DVDR   PX-716AL 1.01> Removable CD-ROM SCSI-0 device
> cd0: 40.000MB/s transfers
> cd0: cd present [2295104 x 2048 byte records]
> (cd0:umass-sim0:0:0:0): READ TOC/PMA/ATIP {MMC Proposed}. CDB: 43 0 0 0 
> 0 0 1 0 c 0
> (cd0:umass-sim0:0:0:0): CAM Status: SCSI Status Error
> (cd0:umass-sim0:0:0:0): SCSI Status: Check Condition
> (cd0:umass-sim0:0:0:0): ILLEGAL REQUEST asc:24,0
> (cd0:umass-sim0:0:0:0): Invalid field in CDB
> (cd0:umass-sim0:0:0:0): Unretryable error
> 
> growisofs complains something about "non-MMC" compatible.
> 

Even if you'll get it to work, don't expect a miracle! I use an external 
USB 2.0 <-> SATA HDD system for backup purposes and even on a fast AMD64 
box, FreeBSD and USB perform really worse (not more than 10 MB/s ehci). 
Under high I/O (SATA harddrives) the box crashes sometimes (FreeBSD 
6.2-PRE/AMD64). If this happens when you burn DVD, it could render the 
DVD unuseable.

regards,
Oliver