We're paying enough to get the RAW images, IMO, but aside from that I assumed pros shot RAW 90% of the time, hence my question on this forum.
Really? Are you? Qualify that statement, how much are you paying? Remember your photographer is essentially giving you the negative.
I once saw the option to buy RAW files from a photographer. The Photographer was offering 5 RAW files taken at the event for $500. $100 per file is a reasonable price for handing over all data and all subsequent business, as well as the loss of purchase of prints, along with the potential loss of reputation from you showing the people unprocessed images from the photographer. Afterall photography encompasses more than just taking a photo.
Honestly I'd call up your photographer and check to see if he is even giving you full sized JPEG. I know one wedding photographer who did that and he instantly doubles his fee for it. DOUBLES his multi-thousand dollar fee.
Arch, these files are being compressed each time whether saving or not, open a 3mb image, it opens at 17mb or so, close it its 3, compressed. H
Here's a few things to try:
1. Make the file read only. Open in photoshop then close. Notice that no warning is given? Now try to save over it and you'll get a warning about being read-only.
2. Or an even better one open a file in photoshop and then while it's open go and delete the original. Without saving simply close photoshop. Notice how the file is not there?
Photoshop will not save a file unless you ask it to. It will warn you if you've made a change to a file you're about to close without saving (this is because it doesn't happen automatically). When you open a JPEG file it is decompressed and then sits in memory. You can then write it out of memory in any way you wish such as an uncompressed TIFF to be re-edited as many times as you want without any further quality loss.
One otherthing you're doing is assuming that the photographer is an idiot and clobbering all the information every time he saves his files. JPEG has no support for any additional data such as layers, transparency, smart objects, etc. So there's a very good chance that even if you shoot and edit JPEG your process would be:
1. Shoot JPEG
2. Open the JPEG, make edits en mass, give up for the day, save as a PSD file.
3. Open the PSD file, make further edits, give up, save over the original PSD file.
4. Open the PSD file, make final edits, save as a JPEG file.
In this case you have only 1 lossy recompression from the original camera. I challenge you right here right now to find a visual difference between a JPEG file that has been recompressed only once. You may use any visual means you wish including difference layers to compare the recompressed file against the original. I tell you right now the file size and data will look different if you did a bitwise comparison but you won't see a visual difference at all.