By the way MC shows identical 8170 Files (244 GB) on both the old laptop AND the new one!
So we are ready for step 7.
In MC\Audio\Files, should I select 3 different songs by pressing and holding down Control, left click on a song ripped from CD, a song downloaded from HDtracks, and a song downloaded from iTunes? That should be 3 different path names?
Great news. Let's outline step 7 so you can go to it.
The suggestion to do files with several path names is smart. You could try doing several at once as you've suggested by holding down Control and clicking on several files. I'd do entire albums at once personally. Otherwise things might get kinda confused as to which files are where. You might try to start this process, as a test, with ONE album. Once you get that to work, try some other path names, to make sure that your technique works. Then do larger batches. At some point you'll end up just doing "everything" at once. Whenever you're comfortable that the process works, you can run it against everything.
Step 7 broken out as individual steps:
1. Select some files. Could be a few files, a whole album, or thousands of files at once.
2. <Right Click> Library Tools > Rename, Move, and Copy files
3. In the dialog that comes up fill out:
A. Top pulldown menu: Update Database
B. Directories: Unchecked
C. Filename: Unchecked
D. Find and Replace: Checked
E. Find What: C:\Users\Steve\Music\
F. Replace with: D:\My Music\
4. Look at the preview pane to the right. It will show you the original file names and the new file names it is about to change to in the database. Make sure they are right! I tried to be exact based on the filenames you told us earlier, but I might be wrong. Check. If the new file paths don't look correct, adjust your Find and Replace rules until the preview looks right.
5. Once it's correct, press OK.
6. Go verify that this worked by playing a few of the files you just updated. They should play. If not, your rule wasn't right. But hopefully this will just work. If this didn't work, you should be able to press Control-Z or Edit > Undo to reverse the changes you just made. Hopefully this won't be necessary.
7. Repeat with another group of files. Keep going until everything is done.
This is the BIG step. Take your time to make sure it's right. I think you'll do just fine with this. Good luck.
Brian.