These email messages should be blocked or deleted if found. The advice is always misleading and folks are better served by researching stock information on legitimate websites.
 
 Stock spam - New MP3 version will try to talk you into it
 http://www.gfi.com/news/en/mp3spam.htm
 http://www.vnunet.com/vnunet/news/2201466/pump-dump-spammers-tell-users
 http://www.symantec.com/enterprise/security_response/weblog/2007/10/mp3_version_of_pumpanddump_sto.html
 http://www.google.com/search?hl=en&q=mp3+stock+spam
 
 QUOTE:  MP3 Version of Pump-and-Dump Stock SpamPump-and-dump stock spam is a classic example of sophistication and diversity of spam techniques. Recently the pump-and-dump spammers have started using mp3 files as a new method of spreading stock spam. In the latest observations we’ve seen an mp3 file as an attachment in the body of an email message – without any content – and the subject line usually includes “RE:”, “FW:”, or is sometimes just blank. The “From:” address is usually random. Another feature of this new pump-and-dump stock attack is that the mp3 files have random names, such as the following examples:
 
 "ciara.mp3"
 “elvis.mp3"
 "crazylady.mp3"
 "chrisbrown.mp3
 “jillscott.mp3"
 "crush.mp3"
 
 The average file size is approximately 63.3 kb, with the garbled stock tip lasting for about 30 seconds. The Audio content sounds something like the below example: “Hello, this is an Investor alert. nnnnn Inc. has announced it is ready to launch its new nnnnn.com Web site. Already a huge success in Canada, we are expecting amazing result in USA. Go read the news and hit on nnnnn that Symbol get it nnnnn Thank you”