With all the recording, deleting, pause functionality today’s PVRs have, and the large volume of data I’d imagine its shifting around, doesn’t the hard disk get really fragmented? Does the software deal with this, or does it not bother because streaming the content off the disk even when its fragmented not a very intensive task?
FWIW, TiVo uses a different and specifically designed filesystem that has very large data blocks (compared to a home computer). This means that programs are written across relatively few data blocks (a 30 min program uses around 4 blocks) and fragmentation isn't really an issue as it is with home machines.
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