I noticed this cable works for others but after buying two of them, my computer has problems talking to the PSP with this cable. The charge function seems to work, but I suspect that the cable length is a problem, and/or shielding is just substandard. I won't get a connection at all, or the computer will detect the PSP but fail to communicate and give me an error message. Maybe 1 in 10 tries can I get the cable to really work.The only way I can talk to my PSP reliably is using a very short cable that came with my music player. Using this the PSP immediately is seen by my computer and I can back up my files.There is a option to turn off the charge function though the PSP to help with a connection, but after trying it the connection still would not work until I choose the really short cable.It could be a just have a really picky computer but I am SOL when I try and use these cables.