Hi to all!..

I am a newbie, so please, help me sort this thing out...

After reading a lot of topics at this site, i decided to carry out some test involving lossless codecs and compare .wav files using md5summer.exe...
firstly, i created a .wav file...it was 44581kb...
then using EAC and Flac.exe i created a .flac file and then decoded back again...the .wav file was 44599kb...
i was a bit puzzled and decided to use a frontend and did encoding-decoding thing .wav-.flac.-wav again and the size was 44581kb!..
well, of course, i thought the problem was tagging and did it again in frontend having unchecked "add tags" and but the result was the same - 44581kb...

but to my surprise, the same thing happened with .wv - decoded .wav was 44581kb (frontend) and 44599kb (eac)...

b7405058dceb9b03ae39d0ca02481afa *wav from flac-eac.wav
b7405058dceb9b03ae39d0ca02481afa *wav from wv-eac.wav

So, it is definitely EAC that modifies data but what is it?..

the commandline settings in eac for flac
-8 -T "artist=%a" -T "title=%t" -T "album=%g" -T "date=%y" -T "tracknumber=%n" -T "genre=%m" %s
for wavpack
-h -m -w "Artist=%a" -w "Title=%t" -w "Album=%g" -w "Year=%y" -w "Track=%n" -w "Genre=%m" %s

So, it looks like no one has ever faced these issues...

Well, then i'm really perplexed...

Use EAC bit comparison tool or foobar2000 bit_comparator for accurate checking of the audio streams. Lossless encoders might add or remove extra-info (like wav chunks or things like that).

I ripped a track off a CD with EAC v0.95b1 to FLAC using the OP's command line; proceeded to decode it with Speek's flac frontend v1.7.1. The decoded file is exactly the same as the WAV ripped with EAC straight off the CD, both file size and content.

Yeah, i got the problem solved...

The thing is I had the option "Fill up misssing samples with silence" turned on...After turning it off, i got the identical length of the tracks...

Thanks to all for help!..