Try this free DVD player software.

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AUDIO and VIDEO codecs
XP Codec Pack
Codec Pack All in 1
K-Lite Codec Pack

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AUDIO codecs
MPEG Layer-3 Codec
AC3 Filter
LAME MP3 Encoder

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VIDEO codecs
FFDShow MPEG-4
OggDS/OGM Codec
DivX 6.4