2000 NW-E3
The NW-E3 is the first Network Walkman to feature built-in flash memory.
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The NW-MS70D is a Memory Stick Walkman equipped with built-in flash memory. It has 256MB of internal storage and supports expansion with Memory Stick Duo. It supports audio playback in ATRAC, ATRAC3, and ATRAC3plus formats and has a backlit LCD display.
The NW-MS70D was Sony's attempt to give solid-state audio a strong physical identity. The body was cut entirely from titanium, and the weight, temperature and density set it apart from the plastic flash players common at the time. It felt intentional in the hand and clearly distinct from the earlier Memory Stick models.
The bar-shaped silhouette traced back to the NW-E3, but the material shift changed the device completely. The edges were milled with tight accuracy, the surfaces kept a natural metallic tone and the matching stick remote carried the same finish. The whole setup came across as one focused piece of hardware.
Memory Stick Duo provided removable storage when most solid-state Walkmans were fixed. Capacities were small, but the flexibility mattered to listeners who preferred building libraries on physical media. Playback ran through Sony's ATRAC chain with fast access and a low noise floor, and the sealed titanium body gave the MS70D a sturdy feel uncommon in early flash units.
The friction came from the software. OpenMG and early SonicStage builds added steps that worked against the simplicity of the hardware, creating a clear divide between Sony's physical craft and the tools needed to load music. The hardware justified the extra effort.