Exception: Audio Hardware Underrun

[Rj Hewitt]

I would suspect your 20GB drive is the culprit. How much space do you have left on it. Bear in mind that XP will be using this as a page file drive. Get close to 80% in NTFS performance will start to drop

[Danadana]

Well, I had close to 4GB free out the 20GB (maybe a bit less than 20%…). But since I suspected that was the problem too, I deleted some things and now I have 6.83GB free (about 35%). It didn’t solve the problem…
Anyway, I read about a solution which I haven’t tried yet:
I de-fragmented my media drive (D), which I gues I shouldn’t have done… That might have caused the problem. So I read somewhere I need to copy all the media files to another drive, delete it from D and copy it there again. What do you say about that ?
Another thing I was told I need to do (which I didn’t do during work till now) – when I work on more than one project – “hide” all the other projects’ media files (other than the one I work on) in files I creat for each project in the Attic folder. Is that true ? Could that also cause the problem ?
Thanks for your reply.

[R. Hewitt]

Defrag on the drive could cause issues. By moving media to another drive, erasing all files (format) on the original drive and move the files back over is more likley to give you consecutive files on the drive, which is a positive move. However, the Avid files seem to get corrupted very easily and this could introduce more problems.

I wouldn’t have thought hiding the other projects’ media will have any effect. The media is stored as discrete files in the OMFI folder. The project files simply contain links back to the original media, which it locates through an Avid database file. The database file often gets corrupt and deleting this and restarting your Avid app and opening the project again will re-build the database file. However it’s something that shouldn’t be done too lightly.