QUOTE(tobman @ Sep 20 2007, 16:24)

Also, I want then convert it to FLAC lossless (5.1) - is there a direct way ,too?
Yes, you can do it in one step with foobar2000 and a flac encoder.
Search for "foo_input_dts" component, download, copy to the "Program Files\foobar2000\components\" directory. This will enable DTS decoding support in fb2k.
Then download
FLAC command line encoder (flac.exe) and copy it to the "Program Files\foobar2000\" directory.
Set up converter for FLAC encoding, use parameters string:
--ignore-chunk-sizes -s --best --channel-map=none - -o %d
See also Wiki for additional information on foobar2000:
http://wiki.hydrogenaudio.org/