The link given by dms05 is frankly an amazing website. Several people have expressed doubts about the legality of the site (as far as the uk is concerned). I discovered the site when it was given a very strong recommendation by the Sunday Times - who probably have one or two lawyers on their payroll vetting such advice.... Lossless flac files are about £4 per cd but sound exactly like the original cd (when converted back to wav & burnt to disc), even when subjected to critical listening on a high end system. Remember we are talking about very large files here so you need a broadband connection.
Allofmp3.com offer the full cd for download - yes 700 meg - if that is what you want. Or, a lossless (flac) download of the full cd at around 400 meg on average. If you accept the legality of the service (see my other post), why would this file size be a problem with broadband? The flac downloads are quite superb - cost about £4.00 so very few people are opting for the "original digital audio". So unless it is a "chart cd" as sold by Tesco etc, you are comparing £4.00 with £15.00 from HMV.