I like Sundance's method.
File-Open Special (or Open Backup, depending on your version)

You likely could get back to where you goofed pretty easily as long as you don't save too many times (and thus push desired backup out of reach). Don't save it anymore and start checking backups.

Look at the dates of the files in the RBBackup folder, select the one with the date where you think it was right. May even want to just try the oldest first and see what you have.
As shown below, these settings are in the Prefs-File tab area in case you want to change them.
The second image is meant to show that 'where' you ran RB from for these sessions makes a difference. If RB was run from C: then check C:\Realband\RBBackup
If it was run from another drive then it may be E:\Realband\RBBackup (or whatever)

It's important to know which drive you ran the RB program from when you saved (possibly the external drive). Then you know which backup folder to check. I have RBBackup folders on multiple drives/folders and have learned to look for this.

Attached Files (Click to download or enlarge) (Only available when you are logged in)
RBBackupSettings.jpg (15.47 KB, 55 downloads)
RBBackupDrive.jpg (68.31 KB, 54 downloads)
Last edited by rharv; 03/07/16 02:53 PM.

I do not work here, but the benefits are still awesome
Make your sound your own!