Engineering

"Sony tackled skipping in the their discmen through mechanical & design improvements, reinforcing the chassis & refining servo mechanisms to stabilize the laser’s tracking. Still, the basic system struggled with vibrations, especially during movement, falling short for active users. By 1992, Sony cracked the code with ESP which introduced a small RAM buffer that pre-read and stored 3 seconds of audio data. In 96, Sony extended ESP to a 20-second buffer. Unlike later systems, its larger buffer relied on increased memory rather than advanced reading techniques. Sony’s anti-skip quest peaked in the late 90s with G-Protection, which combined a 40-second buffer with shock-absorbing mounts and refined laser tracking. By the end of its life cycle the CD Walkmas could belt out tunes for up to a whopping 115 hours on a mix of gum-stick and AA batteries."

"Sony tackled skipping in the their discmen through mechanical & design improvements, reinforcing the chassis & refining servo mechanisms to stabilize the laser’s tracking. Still, the basic system struggled with vibrations, especially during movement, falling short for active users. By 1992, Sony cracked the code with ESP which introduced a small RAM buffer that pre-read and stored 3 seconds of audio data. In 96, Sony extended ESP to a 20-second buffer. Unlike later systems, its larger buffer relied on increased memory rather than advanced reading techniques. Sony’s anti-skip quest peaked in the late 90s with G-Protection, which combined a 40-second buffer with shock-absorbing mounts and refined laser tracking. By the end of its life cycle the CD Walkmas could belt out tunes for up to a whopping 115 hours on a mix of gum-stick and AA batteries."
https://obsoletesony.substack.com/p/how-sony-solved-the-discmans-biggest

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I had this, and several that followed. They all still skipped honestly. It was fine if you were walking on flat ground but bumpy ground, jogging, a car or bike ride: no sir. Skip city.

writing stuff about tech + decentralization over on blog.thumbsup.me

Yeah I think for that use-case it was a huge improvement over previous technologies. 

Have you seen this? Pretty positive reviews

Yeah I think for that use-case it was a huge improvement over previous technologies. 

Have you seen this? Pretty positive reviews

https://www.fiio.com/dm13

My experience differed, but I also never really put it through the wringer to test its limits. Car dashboard and sometimes side door pocket was as adventurous as it got.