There is so much crap out there when searching for codec conversions. Here is a simple Perl script that does the conversion. It assumes you have oggdec and lame in the path.
#!/usr/bin/perl -w # Convert a directory of .ogg to .mp3 sub systemprint { my $cmd = shift; print "$cmd\n"; system( $cmd ); } foreach my $oggPath ( glob("*.ogg") ) { my $mp3Path = $oggPath; $mp3Path =~ s/\.ogg$/.mp3/; my $wavPath = $oggPath; $wavPath =~ s/\.ogg$/.wav/; systemprint( "oggdec -o \"$wavPath\" \"$oggPath\"" ); systemprint( "lame -b 256 \"$wavPath\" \"$mp3Path\"" ); }