Hi.

Thanks a lot for helping me.
There is one thing I do not understand.
I 've four wav files with a different date.

-rw-r----- 1 dtuser staff 258904 Apr 22 09:53 3210223758_73072441618_20090415151440972.wav
-rw-r----- 1 dtuser staff 192504 Apr 21 09:53 3210224056_73073919768_20090418102231949.wav
-rw-r----- 1 dtuser staff 258904 Apr 20 09:53 3210223758_73072441618_20090415151440972.wav
-rw-r----- 1 dtuser staff 192504 Apr 19 09:53 3210224056_73073919768_20090418102231949.wav

Using the recommended commands in my test scrip have no making any sense.

find ${MAIN_DIR} -name *.wav -mtime -3 > FILE_LIST
or
find ${MAIN_DIR} -name \*.wav -mtime -3 -exec mv {} \;

-mtime -3 or -mtime -5 or -mtime -10 makes no difference.
The result is that all files are compressed and removed instaed of the files of three days old.

Best regards.
Eddy.