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Originally posted by: Hal 9000
Can somebody tell me a good software program to download to burn DVDs on my external DVD player??

DVD players can't burn DVDs!

Seriously, you may have downloaded an OEM version of Nero that is "locked" to specific hardware. If you didn't pay for it or you didn't get it bundled with your burner then it seems likely that this is the case.

Easiest program to use is DVD Decrypter. Simply right-click on an .iso or .img file and select "burn".

If you have a Video_TS folder instead of a disc image, use ImgTool Classic to create an ISO first.