> 1. The drive reads the recorded file in CDA format (this is the > important point in error detection, and that's where we need > AccurateRip).
Did someone mention AccurateRip? ;) The following quote is taken from: http://www.dbpoweramp.com/spoons-audio-guide-cd-ripping.htm and explains the different aspects to secure ripping from re-reading, c2 pointers and AccurateRip how they all contribute: > > Secure ripping is the process of ripping audio CDs without errors, > errors manifest as audible pops, clicks, or extended periods of silence > (where the CD drive has substituted the error with silence), rips with > errors are sub-optimal. Secure ripping is different, errors are > detected, potentially recovered and unrecoverable tracks are separated > out, the last thing your speakers need are tracks with speaker damaging > pops and clicks. > > Secure ripping has many pre-requisites, each need to be fulfilled to > rip securely: from finding a quality CD drive (C2, cache invalidation, > over-reading, drive offset). > > Secure ripping has progressed leaps and bounds over the years since the > introduction of AccurateRip, previously secure ripping programs relied > upon C2 error pointers or by reading the same area twice to detect > errors. Lets examine each of these methods: > > C2 Error Pointers > > Each drive chipset implements C2 pointers with differing levels of > quality, even the best implementation can still let through 3% or more > errors through. Having C2 helps, but should not be relied upon alone. > > Re-Reading > > CD is read twice, if a section contains an error it will likely return > different errors, so can be detected. This is true mostly but not > always, consistent errors exist and in our opinion present more of a > problem to secure ripping than the C2 error pointer detection 'hole'. > > As mentioned AccurateRip helps enormously with secure ripping, a CD rip > is compared to an independently ripped disc (different drive, different > CD - no 2 discs would have the same scratch). > > -- spoon Spoon- www.dbpoweramp.com ------------------------------------------------------------------------ spoon's Profile: http://forums.slimdevices.com/member.php?userid=18156 View this thread: http://forums.slimdevices.com/showthread.php?t=50690 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
