Sony DW-D56A Can't Play DVD

OS Windows XP Professional
Dell Inspiron 6000
Burner - Sony DW-D56A PDS7
Media - BENQ 8x DVD+R 4.7GB Data
AnyDVD 5.4.1.1 (full version)
CloneDVD 2.8.5.1 (trial version)

I just made a copy of the DVD Constantine I bought, tried to play it on the DVD player (TV) it said I had no disc, tried to play it on my Dell and nothing…

Were do I start to troubleshoot the problem? I am reading all the posts regarding the DW-D56A but no real solution…

So I need to see if it’s hardware, software, media, etc…

Thanks for any info…

Look at the back of the disc; does it look like that it has been burned? If not, then there’s something weird going on. If so, then the next thing I’d do is to do a disc quality check using either CD-DVD Speed or KProbe2. Please see the Media Testing Software subforum of the “Blank Media” forum for more information on how to do a quality scan.