In the days of CDs, there were units that would hold ~100 CDs vertically on a turntable, rotate the correct CD into position, grab it with a robotic arm to lay

In the days of CDs, there were units that would hold ~100 CDs vertically on a turntable, rotate the correct CD into position, grab it with a robotic arm to lay it on a traditional CD reader, and play it. [1] My grandfather had ~5 of these 100-disc CD changers, fully loaded, in various rooms around the house. Plus wall-to-wall bookshelves, many of them packed with CD cases. A CD is 700MB of audio. Let's estimate, conservatively, that he owned 800 CDs. That's 70 gigs of audio. He wasn't exceptional in terms of music library size. That's who buys iPod Classic: people with more than 32GB (or recently 64GB) of music who want it all in one player. iPod Classic also lives basically indefinitely (mine is at least 6 at this point, still works perfectly and the battery life is measured in weeks) and can be operated entirely by feel. Nothing ruins music while falling asleep like having to look at a bright backlit LCD screen to change the song and getting sidetracked into Facebook. [1] http://www.amazon.com/Pioneer-PD-F908-CD-Changer-Discontinued-Manufacturer/dp/B00000K31K/ref=sr_1_2?ie=UTF8&qid=1437289141&sr=8-2&keywords=100-disc+CD+changer&pebp=1437289147111&perid=04RQEYSVZRZ6YMNZREXV http://www.amazon.com/Pioneer-PD-F908-CD-Changer-Discontinue...