Memory card and MP3 music player producer SanDisk said on Thursday a legal battle with MP3 patent holders is ongoing and shrugged off a statement from a patent pool firm claiming a judicial victory. Sisvel from Italy which collects royalties for audio coding technology used in MP3 players and set top boxes–also on behalf of other firms like Philips Electronics from the Netherlands and France Telecom–has accused SanDisk of not paying for the technology.