As a kid i listened to Casey Kasem's top 40 every week. The Woolworth store in town had all the top 40 hits on 45 rpm records, 2 for a dollar, so i'd buy a couple every week.
Hooked on a feeling - Blue Swede was probably my first 45.
Paradise Theatre - Styx Was first 8 track, It was actually given to me by my older sisters BF though . He had a badass Cordoba we used to cruise around and crank that 8 track all the time lol
You cant stop rock and roll - Twisted Sister was first cassette
2112 - Rush was first CD
First Mp3 was Enter Sandman - Metallica illegally downloaded from Napster. It took 45 minutes but was well worth it. Screw you Lars! ha ha