Oh yes, you asked about compression as well. I will not compare analogue tape and digital. Good analogue tape and good digital sounds different. Good tubes and good transistors sound different. Neither is better than the other in all aspect. It's a matter of taste. However, regardless of sound, digital is easier to maintain than analogue tape but soundwise, only different. However, I can say that recorders that use compressed data are not what I would recommend. Mainly because they're often pretty expensive and do not produce as good quality as they could without the compression. You know the saying "a chain is never stronger than it's weakest link". Well, the compression is definitely the weakest link. You know how MP3 files sound worse than CD, right? However, you can fit many more MP3s on one CD than original CD tracks. It's simply because the MP3s are heavily compressed. The compression in the stand-alone hard disk recorders is not near as poor in quality as MP3. Not even close. BUT, something is gone forever as soon as you compress in the way these recorders do and unfortunately, it's sound quality. Compression can be done non-destructively, like WinZip, but that's another thing.