The above picture represents the exact same DVD Studio Pro 4 project as burned from two different computers using the exact same blank media. On the left we have a DVD burned from a Dual 2.7 PowerMac G5 - and on the right, the same DVD project burned using a Quad 2.5 PowerMac G5.

You’ll notice in the specs below that the Dual 2.7 and the Quad 2.5 have SuperDrives from different manufacturers.

Dual 2.7 PowerMac G5 Super Drive Specs

Quad 2.5 PowerMac G5 Super Drive Specs

Again, both DVDs were burned from the same DVD Studio Pro Project with the same pre-encoded assets using the same type and size of DVD-R blank media. Playback on both disks is exactly the same.

Sooo…why is the media on the disk burned using the Dual 2.7 is taking up more real estate than the disk burned from the Quad 2.5?

Apparently, the answer lies within the secret chambers of the drive manufacturers build sheets. Hmmmm…Investigate I shall.