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more sidecar and catalog questions

Aug 31, 2019
Thanks to all who helped me get this straight. Think I have a better understanding now. One of things I was trying to figure out too was the file backup process. As mentioned above, storage is cheap, but I hate to waste space too... As pointed out, I use Time Machine, and as mentioned in the book, when writing to the file it can cause a large file to be included again in the backups. For instance - I looked at 2 files - each one has so far 6 back ups, 4 .dng and 2 .jpg. The 8 .dng's use 172mb and the 4 .jpg 22mb.

Just a real life example of what's mentioned in the book. Thanks all for the help!