I've never had a problem with any of my flac files. Flac is the musical equivalent of the zip file used for compressing computer program and data files. There is no data lost or changed. Higher compression levels for flac (which makes for smaller file size) do require more processor work to decode, but I doubt that has been a problem for most modern PCs for a decade or more.
I converted most of my vinyl (well over a thousand albums) to digital over a ten year period, so there was a lot of material I was able to compare back-to-back. I've found a careful digital conversion of a LP sounds just as good as the vinyl.
IMO, most of the complaints about digital music have to do with the fashions and fads of the time period when the recording was made -- think of the "loudness wars". Due to the technical limitations of cutting vinyl, it is much easier to pull off a loudness war recording with digital. That's just one example. Digital recording has a lot of "toys" available, and if you give toys to boys, they will play with them. That said, digital, and the flac format, is perfectly capable of outstanding recordings -- there are plenty out there if one looks for them.
I converted most of my vinyl (well over a thousand albums) to digital over a ten year period, so there was a lot of material I was able to compare back-to-back. I've found a careful digital conversion of a LP sounds just as good as the vinyl.
IMO, most of the complaints about digital music have to do with the fashions and fads of the time period when the recording was made -- think of the "loudness wars". Due to the technical limitations of cutting vinyl, it is much easier to pull off a loudness war recording with digital. That's just one example. Digital recording has a lot of "toys" available, and if you give toys to boys, they will play with them. That said, digital, and the flac format, is perfectly capable of outstanding recordings -- there are plenty out there if one looks for them.