CD ripping

Most of my 600 CDs were ripped thorough iTunes as m4a format.

Is it worth re doing this to wav ?

my 2 Channel system is oppo 105 to rega brio r and epos 11 speakers.

If worthwhile any advise on how I should do it myself or reco on services to outsource to?

Appreciate any guidance.


Treating the CD prior to ripping should improve matters, ditto better power cord, fuse, isolating the ripper, all of these things.

To lie in the meadow and hear the grass sing,
To have all these things in our memories hoard,
And to use them,
To help us,
To find...

flac 0 through flac 8 (I think that is the highest) are lossless, compressed formats. dBpoweramp also provides Uncompressed flac, which is not compressed at all. It is basically a wav file with a flac header. If anyone is concerned about flac compression, uncompressed flac is a good option since it has the metadata capability that wav lacks. There are versions of wav with metadata, but they seem to be pretty nonstandard. I think most players play uncompressed flac.

If the m4a files are lossless, then I would suggest converting a couple to uncompressed flac, flac 5, wav or one of the Apple formats and comparing them to see if you hear a difference. Then re-rip the same album to your preferred format and see if you hear a difference. It is easier to do the experiment than to re-rip everything. You can also re-rip at a later time.

If your m4a are lossy, then definitely consider re-ripping.

Obviously, take your time upfront, before launching a time consuming process.
Thanks everyone, great responses!  
Guess I need to do some ab tests and work out what to do.

I'm minded to re rip my collection, back up and get rid of all the CDs.  But will test first.

dbpoweramp can help guarantee 100% accurate rip if possible.

Poor quality or dirty CDs will result in taking longer to rip but if accurate rip is on the results will be the same each time.

It should not matter in the end for rip quality (as opposed to possibly playing live) but you could rip before and then after treatment to see if CD rips faster or not. If treatment helps rip will occur faster. If not the same. Or possibly longer if it actually hurts.

But you would know for sure if you care.

Accurate rip can be turned on or off to enable rips of defective CDs if needed.