QUOTE(Egor @ Apr 14 2008, 15:23)

Yes, you definitely can! The new flac.exe encoder even allows for input file to be in flac format, i.e. you can easily re-encode without first decoding to wav:
flac.exe my.flac -o newer.flac
This may be a stupid question, but is there a good reason to do this?
I have my entire CD collection in FLAC, and it would take a long time to do this, so I just wonder if it is neccesary?