[daddaj]

Thank you so much for your responses (even the windows one).

Can't use MAX - need 10.4 (I have 10.3)
Can't use xACT 2.06 - need 10.6
Can't even use xACT 1.72 got this error:

song.flac: dyld: flac version mismatch for library: /usr/lib/libiconv.2.dylib (compatibility version of user: 7.0.0 greater than library's version: 5.0.0)

I tried XLD again, and let it run for almost an hour, and it finished this time.
Not sure why it took so long, maybe because my hard drive doesn't have much free space.

scb, you are correct - I used xACT 1.58 to convert 24-bit files from here:
http://www.thetradersden.org/forums/...ad.php?t=74611

But xACT 1.58 gives this error for the files I can't convert:

song.flac: ERROR while decoding data
state = FLAC__STREAM_DECODER_UNPARSEABLE_STREAM
The FLAC stream may have been created by a more advanced encoder. Try
metaflac --show-vendor-tag song.flac
If the version number is greater than 1.1.2, this decoder is probably
not able to decode the file.

I really need to upgrade my os!!!