They sound the same
When created from the same PCM samples and decoded correctly, lossless versions can deliver the same audio samples. Tags, container metadata and playback handling may still differ. The FLAC FAQ distinguishes audio preservation from recreating every byte of an original container.
| Format | Audio storage | Library considerations |
|---|---|---|
| FLAC | Lossless compression | Widely used tags and embedded artwork; check app support |
| ALAC | Lossless compression | Useful in Apple Music library workflows |
| WAV | Often uncompressed PCM | Metadata support varies between tools |
| AIFF | Often uncompressed PCM | Check metadata and tool compatibility |
Compression ratios depend on the recording and encoder. A fixed percentage is not a reliable size estimate for every album.
Which to use
- FLAC for almost everyone: small, open, great tags, plays everywhere except Apple’s own app.
- ALAC if you live in Apple Music and want its library to show your rips.
- AIFF for DJ and production workflows that want uncompressed files with tags.
- WAV for studio deliverables; avoid it for a library, because tags are unreliable.
Converting between them
Converting between compatible lossless formats can preserve the PCM audio if sample rate, bit depth and channels are retained. Metadata, artwork and non-audio chunks may not transfer identically. Verify the converted files before deleting the source. A lossy original does not become lossless merely by converting it to FLAC or ALAC.
Frequently asked questions
Is FLAC better than ALAC?
Both can preserve the same PCM samples. Choose by compatibility and metadata workflow; compression ratio depends on the encoder and recording.
Does MP95 play 24-bit FLAC?
MP95 supports compatible 24-bit FLAC sources. An unprocessed final output still depends on settings, the operating-system route and the output device.