iDVD Error

Anyone know anything about a "Writer Error- Recovery Failed (0x0c,0x08)" message in iDVD. I have a 17" G4 iMac with a gig of ram and will always run into this when burning recently. i have over 20 gigs free on my hard drive and don't know whats wrong. To make matters worse i'd have to pay apple to get a answer on this. The rents wouldn't spring for applecare.