Session files being corrupted during save or close

[danisrael]

I am currently working on a large project. Several weeks ago I had this happen to a session and again last night to a second session.

When the session opens, there are missing tracks. All the audio and regions seam to be there, but the track & playlist data is non-existant.

When I restore from the previous nights back-up...the file is still corrupted. My daily routine is to open a song, mix (or make slight changes), bounce, then save/close, each song. I archive each night.

I am able to rebuild the files using "Track Transfer", however I loose all MIDI, Marker, and Groupings.

This only seems to be happening to large files nearing 50+ tracks.

What is this?


SYSTEM
MixPlus (888|24, 888, Bridge I/O, USD)
Power Tower 200 (OS 9.0.4)
PT 5 software

[DigiTechSupt]

-You may have a corrupted HD driver or BTree directory. Check the intergrity of your audio drives with Disk Warrior or any other such diagnostic utility.

Brent

[danisrael]

Utilities report no problems. However, both the session files are on an HFS+ drive.

[danisrael]

Any thoughts on returning to 8.6 to cure this problem. The entire PT system was rock solid on PT 4.?? with OS8.6. Absolutely nothing else has changed.

I did forget to mention I have been using a Newer Tech G3 upgrade. But had no problems with it before.

[DigiTechSupt]

-Since Power Tower computers are not supported with PT 5, you may want to think about downgrading you Mac OS if you continue to have problems.

-What format utility did you use to initialize your System Drive and Audio Drives?

-Are you using HFS or HFS+ formatting?

-Revert to the stock CPU and see if the behavior continues.

Brent