Date: Wed, 04 Oct 2006 15:26:06 +0200 From: "O. Hartmann" <ohartman@uni-mainz.de> To: Stefan Lambrev <stefan.lambrev@sun-fish.com> Cc: freebsd-stable@freebsd.org Subject: Re: External DVD burner - connected via USB. Message-ID: <4523B66E.2080707@uni-mainz.de> In-Reply-To: <4523A7D0.8000007@sun-fish.com> References: <45239500.1080800@sun-fish.com> <200610042136.41691.doconnor@gsoft.com.au> <4523A7D0.8000007@sun-fish.com>
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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
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