Disc Yeds7rar: Sony Test

Let me know which specific Sony player model you’re working on – I may be able to suggest alternative calibration methods.

This is the disc's claim to fame. Track 20 is not music. It is a high-frequency single tone generated by the shortest possible pits on a CD (3T). For a laser pickup, reading 3T pits is extremely difficult. If a CD player can read Track 20 without skipping or excessive jitter, it is perfectly calibrated. sony test disc yeds7rar