People often ask this question that whether we can upload RAW files to Picasa or does Picasa support RAW files? The answers is yes, Picasa does support RAW files.
Unlike Flickr. Picasa does support RAW files. That mean's you can upload any amount of RAW files to your Picasa account. We would also like to mention that Picasa supports hundreds of distinct RAW formats from manufacturers like Adobe (.DNG), Canon (.CRW, .CR2), Fuji (.RAF), Kodak (.DCR, .KDC), Nikon (.NEF, .NRW), Olympus (.ORF), Samsung (.DNG), Sony (.SRF,.SR2) etc.
So, if you are using a RAW format or the camera mentioned above, you can easily backup and upload RAW files to Picasa. Simply follow the usual Photo upload process to upload RAW files. When you upload a photo to the web albums site, Picasa builds a JPEG on the fly and uploads that for you.
You can install PicBackMan's Picasa uploader for Mac from the website and start backing up photos and videos.