Tecumseh built several brands of small engines, including Lauson, Peerless, Power Products and several "hardware company" engines, Craftsman and Montgomery Ward products which were just the Tecumseh engines renamed.  This collection goes back several years and pretty much brings you into the solid state ignition systems used today.  Apart from the obsolete and antique engines it covers the engines you are likely to find in use today.  Very good information covers literally thousands of model configurations, does not have a comprehensive cross reference information of and "hardware store" brand name breakdowns.  It is supplied in PDF format, royalty free for your private use. You can print any or all of the manuals or simply read them on your computer.  

You will receive a CD-ROM, it does not "play" because it is NOT a DVD  or a movie, it is a DATA CD.