IRiver SlimX350 : any review ? Reply #25 – 2002-07-11 04:08:58 QuoteOriginally posted by silver_cpu Lol...kinda wish VQF was still around. At least AAC uses the VQF technique (or at least I believe it does)ARGH! No, please.AAC is very, very different to VQF.The fact is that both AAC and TwinVQ (VQF technology) are part of the MPEG4 standard. But the similarities end there.