Pioneer DVR-A07XLA and SafeDisc 2/Backup

I recent snatched A07XLA for $80 at Fry’s.

I’m satisfied with every aspect of it in terms of performance and quality.

However, there is one area I would question before I’m dead set on the drive.

How does this drive fair in backing up games and such?

What exactly is bitsetting? (I already know the drive doesn’t support it)

Any hacked firmwares to improve the performance even further?

Much appreicated.