Saving Your Recording as a Metro File Before continuing, save your recording as a Metro document file. Later in this tutorial, you’ll record more tracks to form a Section, and then record more Sections to save within your Metro document file. It’s always a good idea to save your work as often as possible; unforeseen problems can cause file loss or damage. It is a good idea to save your work to floppy disks at least once a day so that you have a backup of your work. To save your recording as a Metro file: Choose Save or Save As from the Edit menu. Type a name for your Metro file, then click OK to save it to a drive or diskette. Metro saves your file under the name you designate. Proceed on to Enlarging the Transport Window.