I have a Pioneer 105, with the latest firmware and am burning Ridata 4x DVD-R disks with Toast. Half the time, with best selected, my first attemt at burning results in a buffer underrun. I'll try again and it works. I don't know what the problem is. Toast is on Data. Any help is appreciated.
In the advanced tab of your burner settings in toast, check the "buffer underrun protection" button. Also, slow it down and don't multi-task. Macs even back 4-5 years should all be fast enough to burn to dvd. OH, one other thing..this is big: Use ONE drive for data that is seperate from your system. It is wise to use a nice big fat wide open drive for your data so you computer can lay it down sequentially. If you use your system drive with all your documents, applications etc it can be very fragmented. When the drive has to read all the fragments it can slow it down and potentially cause a buffer underrun. MG
Using OSX it is highly unlikely that your HD is fragmented unless it is almost full and you are often modifying or creating very large files. http://docs.info.apple.com/article.html?artnum=25668
Thanks for all the info. Yeah I have a 160GB HD for all my media. Things are better now, but it is time for a new burner.
I have a 105 that needs a new laser. If you're gonna trash your 105, let me know and maybe I can take the laser out! MG