Internal IDE DVD Burner

[Rick Stevens]

Robin Laing wrote:
> Gene Poole wrote:
>>
>> I think I've run into a bad DVD burner/reader and maybe someone can 
>> help.  At home I've got 5-internal DVD burners and at work I have 
>> 1-external DVD burner at my disposal. Of these 6-burners I'm pretty 
>> sure I know the brand names of most (2-Sony; 1-HP; 1-eMachine; 
>> 1-Pioneer; 1-LiteOn) based upon the machines they are in. I know the 
>> Sony's are the same even though 1 is internal and the other external.
>> The burner I seem to be have the problem with is the Pioneer.  It 
>> doesn't seem to process a Fedora 9 x86_64 or CentOS 5.2 x86_64 
>> installation DVD - even if the thing was burned on it!  All of the 
>> blank DVDs are +R and I use Verbatim, HP, Imation, and TDK.  Currently 
>> the machine that houses the Pioneer is the only x86_64 machine I have, 
>> so I have no way to test on another machine.
>> The only install DVD that is working is Fedora 8 and Fedora 10.  I 
>> want to install CentOS 5 as it's the most like the Red Hat 5.1 I 
>> support at work and I want to run Oracle on my machine. How can I 
>> verify a x86_64 install DVD on a non-x86_64 machine (I've done the 
>> md5sum and sha1sum process at DVD creation time)?  Is it because I've 
>> burned a x86_64 DVD on a i386 machine causing me a problem?  Should I 
>> just try -R DVDs?  Should I lower the burn speed?  Is the phantom of 
>> the DVD haunting me?
>>  
>> TIA,
>> Gene
>>
> 
> 
> I had a problem with burning DVD's and it turned out to be the power 
> supply.  The voltage was at the lower limit as measured with a volt 
> meter but when burning DVD's would go below the required voltage.  It 
> was a pretty new power supply.  A new drive didn't fix the problem.
> 
> The BIOS and sensor both said the supply was within spec but using a 
> Fluke showed otherwise.

The sensors and BIOS can only check the motherboard power, not the power
at the drives.  The +12VDC at the mobo usually comes from a different
regulator in the power supply than the +12VDC on the drive connectors
(good thing, too).  As Robin says, nothing beats a good DVM when
debugging flakey stuff.
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- Rick Stevens, Systems Engineer                      ricks at nerd.com -
- AIM/Skype: therps2        ICQ: 22643734            Yahoo: origrps2 -
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-                Huked on foniks reely wurked for me!                -
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