![Obsolete Sony on X: "The 2004 Sony Walkman NW-HD1 was a groundbreaking digital audio player that used a 20GB hard drive to store up to 13,000 songs in MP3 or ATRAC3 formats. Obsolete Sony on X: "The 2004 Sony Walkman NW-HD1 was a groundbreaking digital audio player that used a 20GB hard drive to store up to 13,000 songs in MP3 or ATRAC3 formats.](https://pbs.twimg.com/media/FvBA9U9WYAAs_hw.jpg)
Obsolete Sony on X: "The 2004 Sony Walkman NW-HD1 was a groundbreaking digital audio player that used a 20GB hard drive to store up to 13,000 songs in MP3 or ATRAC3 formats.
Target Techno - Sony Network Walkman NW-HD1 (20GB) The Good Supercompact and stylish; awesome battery life; basic operation. The Bad Pricey at $400; MP3, WMA, and other files must be converted to
![Sony NW-HD5 Network Walkman 20 GB Digital Music Player (Silver) | Headphone Reviews and Discussion - Head-Fi.org Sony NW-HD5 Network Walkman 20 GB Digital Music Player (Silver) | Headphone Reviews and Discussion - Head-Fi.org](https://cdn.head-fi.org/a/76197.jpg)
Sony NW-HD5 Network Walkman 20 GB Digital Music Player (Silver) | Headphone Reviews and Discussion - Head-Fi.org
![Amazon.com: Sony Walkman NWZW273 4 GB Waterproof Sports MP3 Player (Black) (Discontinued by Manufacturer) : Electronics Amazon.com: Sony Walkman NWZW273 4 GB Waterproof Sports MP3 Player (Black) (Discontinued by Manufacturer) : Electronics](https://m.media-amazon.com/images/I/71WEZvzGLrL._AC_UF1000,1000_QL80_.jpg)