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Computer & Technology RelatedPost here for help and discussion of computing and related technology. Internet, TVs, phones, consoles, computers, tablets and any other gadgets.
DVDShrink is excellent - automatically compresses a dual layered (commercial) DVD onto a single layer (recordable) DVD. It then gives you the option to 're-author' which basically means strip out all the crap like FBI warnings, trailers, foreign languages etc so that you can reduce the compression.
Most disks will fit without compression if you're happy with just the main film and nothing else.
Here's a tutorial for Sky+ to DVD - not tried it yet.