Uploading pictures When i plug usb in to computer and try to pc connect it says please connect ac adaptor

The message about the AC adaptor is precautionary. Uploading a video can take quite a while. It would be disastrous to have the battery run out of juice before the operation is finished because the file would be ruined and you'd have to do it over again.

Try NOT connecting your camera to your computer.

The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program such as Picasa ( http://picasa.google.com ).

Consider NOT connecting your camera to your computer.
The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program, such as Picasa.

Try NOT using the USB connection.

The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB or FireWire). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo cataloging program.

Are you plugging the charging plug into the PSP?There are two plugs on the USB cable 1.the USB plug. 2.the charger plug itself. The USB cable looks like the other end that plugs into the computer only smaller.The charger plug looks like the ordinary AC adaptor.
Also note that You need the computer/device that the PSP is connected to,must be turned on,well this is true with mine anyway.
Also the USB does not charge the PSP as fast as the AC adaptor.

your camcorder doesnt support usb connection.although it came with a pc serial cable,its the cable used for memory stick picture transfer, along with it comes a serial port adaptor for the memory stick and ac adaptor for serial adaptor. of course even if you lost this accessories you can still transfer pics from the ms using a memory card reader which works basically the same way. for videos on the tape you would just need a firewire or an ilink (ieee1394) cable. almost all mac computers support this connection.it's the dv in/out jack on the camcorder with an i symbol.upper most jack on the camcorder jack's location.check your mac to find out what cable you need.the unit uses a 4pin ilink port so you need a 4pin ilink cable at one end and the other end should match of course, the firewire port on your mac computer.should be a plug and play connection.you can use imovie software for video capturing.hope this helps.thanks :)

Upload the Beat software PC Studio. Then go to setting and USB select PC Studio connect phone to computer and there you have it.

You can't transfer videos through USB. You will need a Firewire 6-pin cord and use it to connect from your MAC to the Camcorder. Only then you can transfer videos.

i try to upload photos from my nikon coolpix p50 to 'my pictures' by using my usb cord. it always used to work but not now. something pops up that says "please make sure the device is turned on and properly connected to the computer." i used the the same usb cord as before when it worked.

Yes you need to finalise the discs before you can use them in another player, even a computer.
Behind your battery there is normally a plug hole for your power adaptor to connect to so you can transfer movies etc on power rather then on battery.