I am the Visitor Centre Manager for The National Trust for Scotland in Glencoe. We stock a range of scenic videos filmed by a local man (who must be in his late 60's early 70's) and has now decided to add DVD to his portfolio. Unlike other more mainstream suppliers, he's doing the copying/DVD burning himself (I think using Sony equipment) and therein lies the problem. The first batch wouldn't play on our 'industrial' type Pioneer machine & wouldn't play on my Toshiba at home. He thought it was the type of disc & the fact that they were overprinted and the ink may have ended up on the wrong side!! He's changed disc supplier, dropped the high colour printing & thinks they should be fine now.... they still don't play properly at work (although they do play) and are still not recognised on my Toshiba at home (just says disc error) but did play on a friends new Pioneer. I love my DVd's but I'm into films & tv shows. I don't feel able to help the guy but would like to. If anybody can answer this for me I'd really appreciate it. What's he doing wrong or will RW's(?) only work on new machines? What % of home machines do you think they'll work on? Is there a better option or is the only answer comercial duplication?