How old is the unit? If such is like mine, it's dead. Its been replaced since repair cost exceeded the price of a new drive.
Here's my final test.
I set it as master on a PC with no other drive and attempt to boot a Windows 2000 or XP CD. No boot=it's dead.
We try the usual CD Len Cleaner, but service costs forbid doing much else.
please i need some help i have a pioneer dvr-104 burner the firmware v.1.30, the problem is that it wont burn any cds, and also wont read any of them plz help me i will apreciate it