I have a Sony DRU 500AX (manufactured 20 January 2003) It has a firmware Revision of 2.0c I am using Veritas Recordnow DX 4.60 that came bundled . (For Information , I have also tried Stomp RecordNow Max 4.50 with PxEngine358) I have brought different types of media so i can test for best compatibility(+R, +RW, -R) From the software, I am trying to write an Image and I would like to use the option 'Test and if Ok, Record' This works OK if I use the -R Media, it sucessfully does a test and then starts to Record. If I keep the same image but replace the disc with a +R or +RW (The Sony one which came with the drive) the message ' The Recorder Drive does not suport the test function. Do you wish to continue?' appears, obviously if you choose no, it stops, if you choose yes it continues ... and if the 2 cases I did both discs failed with a 'sense error' .. hense the reason I'd like to test, so I'm not throwing any more discs away! anyone know ...... Why does the drive support the test function for -R and not +R or +RW ??? Is this the case with the DRU500A as well? or is it just a bug with the AX Any Ideas ???