1. The firmware update provided by Apple.com says it does not apply to this drive:
For drives with the Product Identification DVR-104, no update is required if the Device Revision number is A227 or higher.
This is also confirmed if I try and run the updater I get a message saying I can't use this update.
2. DVD tray is clean, in fact, this happened with the very first DVD I put in when the machine was fresh out of the box - and every 2x burnt DVD since.
3. Media is spotless. I've tried air dusting too.
4. Verification fails, indicating the burn did actually fail. I always try viewing the data disks afterwards opening the very last folder I burned which results in a Finder lock up. I have also burned movies which always stop in any DVD player just before the end (about 10 mins left). Again, this does not happen when I use 1x.
- tobs