Originally Posted by
BrodyBoy
Yes. The nice thing about a tag editor like mp3tag is that you can load it all....the whole double album, for example, or an entire multi-disc set....and be looking at the whole thing at once. You can correct any individual track tags, if necessary, but you can also select multiple tracks (or select-all), and make global changes for the entire group of files. It's the easiest way to ensure uniformity of things like album art and any tags that should be the same for the whole set.
As garym said, you're just editing the metadata of the files wherever they are. You're not moving them or creating copies, but just editing them right on your HDD.