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 Dual Layer SuperDrive Problem 
 
 
  #1 (permalink)  
Old 31-05-2006, 01:06 PM
Clinically Insane

Group: Regulars
Location: Sydney, Australia


Hi,

This problem may be linked with a problem I posted earlier, titled: FireWire Shananagans.

My Powermac G4 Quicksilver Dual 1 GHz came with a Pioneer SuperDrive. After downloading Mac OS 10.4.6, I then replaced it with a Pioneer DL SuperDrive.

Here's the problem:

I'm using it to burn data to Verbatim DL DVD-Rs. I have been able to successfully burn information to DL DVD-Rs using the following methods:

• Straight drag n' drop into Roxio Toast 7.2.
• Using Tiger's Disk Utility, to turn a folder of info into a read/write, into a read-only, into a compressed, and into a DVD/CD master - .cdr / .dmg - and then either burn straight from Disk Utility or mount into Roxio Toast Titanium 7.2.

It all works, and when it's done, I can see it, open it, and copy from it - BUT... it will not be seen by any other machine. Only my Powermac G4 can mount the finished DL DVD and copy from it.

All other machines spit them out, and can't even mount them on the Desktop.

What am I doing wrong?

Or.. if one could refer back to the other problem I posted entitled: FireWire Shananagans - has Mac OS 10.4.6 something to do with this and the FireWire issue.

I am still to test DL DVD Data burn to "DL DVD+R Discs" to see if that makes a difference... but really it shouldn't.

If I put in one of my home burned DL DVDs and compare it, through the System Profiler, to - let's say, Apple's iLife '06 DL DVD, there is a difference! The iLife '06 DL DVD shows Volume Information in the System Profiler, whilst as one of mine doesn't!

Is it me - or is it the Powermac G4?

Have not seen this problem anywhere else, nor on Google. Other forums mainly focus on burning video footage, and not data.

All help would be appreciated.

Cheers,

ClockWork
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  #2 (permalink)  
Old 31-05-2006, 01:45 PM
Regular

Group: Regulars
Location: Berkeley, California USA


Make sure you burner's firmware is current and look into PatchBurn:

PatchBurn is a tool to patch existing CD/DVD-drivers or to generate and install new device profiles.
It allows many, otherwise unsupported burners to be used directly with Mac OS X, iTunes and DiscBurner.

http://www.macupdate.com/info.php/id/16466
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Old 31-05-2006, 02:27 PM
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Group: Regulars
Location: Adelaide, South Australia


It may be an issue with DVD-R DL media as it is different to DVD+R DL media.

http://en.wikipedia.org/wiki/DVD-R_DL and http://en.wikipedia.org/wiki/DVD%2BR_DL

Quote:
DVD-R DL suffers of compatibility issues with legacy DVD-ROM drives known as pickup head overrun. To avoid this issue, the two layers of the disc need to be equaly recorded. But this is a contradiction with the sequential nature of the DVD recording. Thus DVD Forum under Pioneer's lead developed a technology known as Layer Jump Recording (LJR), which incrementally record smaller sections of each layer to maintain compatibility with DVD-ROM drives.
[/b]
Not sure if that is your problem but may explain some of it.....
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