Hi,
it takes about 15 minutes to download 4 tracks from an holux m-1200e on bluetooh (it takes the same on usb). I've tried with the 3 download methods with no difference. Gpsvisulalizer takes only seconds to dowload.
Below are informational messages that can help during debug.
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11067 - BT747 2.X.1811 Build:BT747_mdeweerd.1811.20101113162158911
11068 - Initial: 1063x547 Screen: 1280x1024 Final: 1063x547
11068 - Mac OS X
11069 - ppc
11069 - 10.5.8
11069 - 1.5.0_26
11071 - 32