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First: ATI Rage 128 Pro (later added a 3DFX Voodoo)
Worst: ATI All In Wonder 3D Rage 128. Bought it for the hardware mpeg2 compression. Terrible at anything else. Kept my old Banshee and swapped between the two depending on what I needed to do. Re-sold a few months later once all my VHS's were converted to CD. (Never put any of the CDs in my drive since then, but at least the size of my taped-off-tv video shelf shrank a lot!)