Bests & Worsts Reviews from Amazon

I hate leaving reviews claiming something's "broken", but in this case there were some serious problems. So my problems: 1. The device does not handle run-on MIDI commands properly. I doubt that many modern MIDI devices use run-on commands, as they were a somewhat confusing bit-saving mechanism from the 20th century. The keyboard I used was a Kurzweil SP-88. I suspect this is a design-defect in the product. More on this below. 2. The device would not enumerate on my main PC. That box is a custom-built machine using a P5B Deluxe motherboard which has never had any problems with any other USB devices. I even tried clocking the box down to normal speeds; Vista gives me a vague error about the device malfunctioning, and Ubuntu gives me a read error during enumeration in dmesg (which, to be fair, wasn't any more useful in this context.) 3. For all the reviewers who said the cable was labeled backwards: MIDI cables are always connected so that the "OUT" of one device goes to the "IN" of another device. MIDI supports a ring-shaped daisy-chain of devices that way. This cable was not labeled backwards. Elaborating on point 1: On the wrong equipment, when you do this: 1. Press-and-hold key1. 2. Press-and-hold key2. 3. Release key1. 4. Release key2. You get this: 1. Press-and-hold key1. 2. Press-and-hold key2. 3. Release key1. 4. Press-and-hold key2 again. For those technically inclined, here's the data stream from my SP-88 using the old serial cable I was replacing (I had to resurrect a dead machine to get this; I'm forging note velocities for easier comparison): 90 40 45 3c 48 80 40 62 3c 61 Here's what this product read: 90 40 45 90 3c 48 80 40 62 90 3c 61 Here's the nearest valid sequence it could have provided: 90 40 45 90 3c 48 80 40 62 80 3c 61 Note the 80 instead of 90 in the third-to-last byte - "80" means "note off", "90" means "note on". This was a deal-killer for me; your mileage may vary. I replaced the cable with an M-Audio cable from a local shop for 3x the price; that cable also reprocesses run-on commands, but does it appropriately (the third sequence above is what I would get.) The seller was courteous and provided a full refund, including shipping, so all I lost to them was time. I'd buy from these guys again, just not this product.