A Single Layer SACD is a special type of Super Audio CD designed entirely to deliver the highest possible sound quality, without any compromises for compatibility with standard CD players. Unlike a hybrid SACD, which contains both an SACD layer and a conventional CD layer, the Single Layer version features only an SACD layer. This allows the full disc capacity to be dedicated to the DSD audio signal (Direct Stream Digital) — the core of the SACD format.

This approach has one key consequence: a Single Layer SACD can only be played on players that are specifically designed for the SACD format. For true music enthusiasts, this is actually an advantage, as the absence of a second layer reduces potential interference and reflection issues, resulting in an even purer and more dynamic sound. The overall presentation tends to be more open, with smoother high frequencies and a more natural stereo image.

For record labels focusing on high-end recordings and reissues — such as classical, jazz, or acoustic productions — the Single Layer SACD is a way to reproduce the recording exactly as it was captured in the studio, without the limitations of the standard PCM CD format. It is a niche format intended for those unwilling to compromise between convenience and absolute sound quality.