Mohit,I believe the BookPort uses USB 1.1 so transfers are slow but I usually just walk away and do other things. I have not bothered to see how long a transfer really takes.
Depending on the type of file being played, you could see about 60 hours from a good pair of bateries.
Support for the current BP will continue as long as there are parts available. I just got my BP so I dont expect any trouble with it for a long time.
Hope that helps. *---* *---* *---* *---* *---* Ambition is a poor excuse for not having enough sense to be lazy. Robert & Dreamer Doll (Guide Dawggie) Newport, Oregon N24C 3G 8/2000 Hookup rclark0276@xxxxxxxxxxx http://webpages.charter.net/dog_guide/