With the PSP, yes.
With the iPod, your mileage may vary. Apple has changed the way the iPod interacts with its USB port. As a result, there is a risk that your iPod will be formatted if you plug your iPod directly into the USB port. We recommend you record your video to a USB storage device, CF card or SD card, and then import your files into iTunes. Or, if your OSD is connected to your home computer via a network, you can do this automatically. See the
Neuros Forums for more details.