I will explain a bit, since you seem new to file types... (Everyone with more experience can ignore, or correct me)..
MP3 is a "lossy" format. Meaning that the original music is compressed and some of the detail is "lost" ! However It has been reported around 90% of people in "blind" testing can't tell Mp3 @ 320KBPS, from CD Quality that is 16/44.1 So IF your MP3's are 320 Kbps quality. they should sound very good on a player. As you drop to 256kbps, and surely at lower sampling rates than that, you will hear loss of details. (Same is true of ANY lossy format, like ACC.) It is possible to have mp3 even at 320kbps NOT sound great, IF it was encoded using a poor quality or older encoding software.
- When you convert a Lossy format like MP3 to FLAC or WAV, the quality will not change. It will not get better. What was lost, does not reappear when you convert to "lossless" format.
- If you convert original music from CD (or higher resolution source) to a Lossless format (Like Flac), you will not lose any of the music's original quality. And you can convert from one lossless format to another, with almost zero loss in quality.
- IF you try to convert an MP3 to an ACC, or any "Lossy to Lossy" file conversion, you will lose a little more quality with each conversion. Not that you'd continue doing this, but after several lossy to lossy conversions, the music will sound realy bad. It is not recommended to do lossy to lossy conversion because of this.
- I will not try to get into whether PCM, DSD, 24/196 files sound better than CD Quality at 16/44.1... But will say that I have some CD's that were recorded very well and sound fantastic. Sometimes a remastering of an album can sound better than the original. Sometimes not... Usually we hope that when someone sells "High-Res" music, that they have made a Great recording, or have Remastered to Improve the sound. Saddly, this is not always the case.
High-Res only guarantees that the music you hear, is closer to the original recording. A bad recording will still sound bad at higher bit rates... But a Good recording can sound great !
Hope that helps you some,
Yes, most definitely.. Thank you very much.
Time to get started with high-res.