That is because on the CD the files are nor wav's which are very large (say 10MB per minute) when you rip from the CD to the PC it does so in a compressed format (mp3 or wma) which is about 1MB per minute.
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This poetic animation about monsters is illustrated in a Van Gogh painterly style
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Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.