Windows 7: APEv2 in WMP?

Is it possible to tag DTS-padded audio in WMP 12? Now I use AC3 filter for playback ac3 decoder and its quality is fully acceptable. But I can't manage to tag my DTS music, so it still remains as "Unknown Artist". What is more, these files have APEv2 tags already overwritten.



Anyone has idea how to solve this problem? Or what format can give me similar quality (5.1 channels) and is supported by WMP? (Wav isn't a good idea because of approx. 4 times bigger files than DTS...)