What program are you using to download the pics? Is it the same program you are trying to download the videos to? It probably only handles still photos, not movies. You could use a card reader and download the videos to a folder you create on your desktop and then use a program like Windows Media player or something that came with your camera to watch them.
Sending videos to others through e-mail is discouraged. They are extremely large files, take forever to upload, forever to download (especially if your friends have a dial-up connection), and some ISP's won't even permit the upload or download because of the size. To share, burn the videos to DVD and pass them out to friends or upload the videos to an online site that your friends can log onto.
The best way to transfer 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). 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 management program such as Picasa.
Organize edit and share your photos
SD and SDHC cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card.
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 management program such as Picasa ( http://picasa.google.com ).
Take no more pics until you've recovered the photos, take the card out of the camera. Here's some freeware photo recovery software that should be what you're looking for:
The reason this occurred is that you likely never formatted the card. The card will work fine in the beginning but eventually will corrupt. AFTER you've recovered the photos, format the card in your camera to prevent this from happening again (dig out that instruction manual to figure out how). For Canon's, go to tools menu and select the item stating the card's capacity. Then follow the on-screen prompts for a "low-level" format.
Keep in mind formatting will also TOTALLY ERASE YOUR CARD, so again only do this AFTER you've recovered the photos!
Deleting or formatting won't make the data in memory card erased permanently.Those lost pics are still stored on the memory card, it's just invisible or inaccessible. Only the FAT or NFTS table is erased (the information about where those data were saved), but the real data are still intact there in sectors of the hard drive.So as long as those photos are not overwritten by new pictures, it's highly possible to recover them. And the MOST Effective way is to rely on some format recovery programs.Try Asoftech Photo Recovery program, which can recover pictures after deeply scanning the memory card to look for lost pics you accidentally deleted or formatted.http://www.asoftech.com/apr/Here's a format memory card recovery tutorial
There are several possible causes for "memory card locked", "memory card error", or "no memory card". The most common cause is having the tiny slide switch on the side of the card in the wrong position. There are also other common causes if the above didn't help, with troubleshooting steps for this problem listed here.
There is a sensor that detects whether the flash has been raised or not. It seems like this sensor has malfunctionned and is telling the camera that the flash is not raised; this is causing the flash to be disabled.
You must rectify the problem with the sensor. Call Canon warranty support or visit the store that you purchased the camera from to get it sorted by a professional.
Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ...
Here are some troubleshooting steps that you can try that may (or may not) correct it. They only seem to work for less than 40% of the lens errors, but if the camera is out of warranty (or repair cost approaches that of the camera), they're worth that try. Some of the later steps do involve some risk to the camera, so carefully weigh your options before deciding to conduct them:
This
is a suggestion. If you do not feel comfortable trying it, you will need to take
the unit to your nearest service centre. Feel free to let me know if you
need any assistance.
The problem might be that the lens has become stuck in the barrel. There are some DIY solutions you could try, but the
probability is that you will have to get it fixed by a professional.
Use
these at own risk as it may further damage the camera.
Firstly ,
try connecting your ac adapter or usb cable.
Try holding the
shutter button while switching on the camera.
Look at the lens ,
and if some of the lens 'circles' is misaligned or not concentric then
try wiggling it (while holding camera lens down).
Try gently
pushing or pulling the lens when it extends but this is risky as it may
cause the lens barrel to slip out of its guidance system.
Another
way to do this is to place the camera lens down on a hard surface and
then power it up. Be sure to use a soft cloth or something similar as to
not scratch your lens or casing. Let the lens push the camera up and
down a few times and sometimes the little resistance provided by the
camera is enough to get things going again.
Try hitting your
camera near the lens on the body with the soft tissue on the palm of
your hand.
Other than that , I would take the camera to a repair centre for a evaluation to see if it would cost more to repair than to
replace the camera.
If it is still under warranty I would suggest
you take it in before trying any of these steps and remove any
off-brand batteries or accessories as some stores are really fussy about
warranty repairs on camera's with non-brand accessories.
Hope
the advise is useful. please do not hesitate to let me know if you need
any further assistance. Also, please be so kind to let me know if you
found this helpful.