stand alone burned DVDs will not copy in PC burner

[convair]

I have a stand alone Sylvania DVD recorder & while the DVDs I burn with it play on my PC TDK 440N burner using Roxio 6 I can't copy them w/ my PC burner, my brother has the same problem w/ his Samsung stand alone recorder , he was trying to copy a DVD of home movies he made w/ the Samsung & couldn't w/ his PC burner, I'd like just want make one DVD & copy it on my PC burner rather then play the tape over & over again recording with the Sylvania , any ideas?,,
Thanks ,

[guns1inger]

Have you finalised the recording in your DVDR before bring the disc over to your PC ?

What happens when you try to copy them on your PC ?
What software have you used ?

[convair]

Hi gunslinger,
Yes I do finalize them & the trouble starts after they cache in the PC burner & I then insert a blank & right after it starts to wright to disc it stops & I get

"Errors occurred during operations"

D:TDKRW0404N"Wrighterror"[05/27/00] ,

and I'm using Roxio 6 ,

Cheers,

[guns1inger]

Try using DVD Decrypter ISO->Read, ISO->Write.

[blinky88]

Could be the mode you are using on the DVDR. Record in Video Mode ..not.. VR.

[convair]

Thanks guys I should have some time over the weekend to try your suggestions & I'll report back,

Cheers