Well like a lot of similar “this or that” type of questions, it’s a matter of preference. I’m going to go over them and then discuss why I have my particular preference. This article is aimed towards the casual digital music listener, and will be much too basic for you music enthusiasts who know music encoding like the back of your hand. However I would hope you music pros choose FLAC.
First, some basics for the beginner. Music on a commercial CD is stored as a large, uncompressed WAV file, a format way too large to be used for digital storage. Therefore, the files need to be compressed for practical storage purposes. FLAC stands for “Free Lossless Audio Compression.” Therefore the software to compress a WAV file to FLAC is open-source and free for use by the public. Lossless means that the converted FLAC file is smaller than the original WAV file, but contains all of the digital information that was originally there, and one can transcode the file back to WAV without losing any information. Think of a FLAC file as a ZIP file for audio files, but specifically geared towards audio such that programs can play them with the same quality as a WAV file. FLAC files will generally be approximately 6 MB/minute of music.
MP3 files, the most commonly used files for music compression, are lossy files. Therefore, when music is encoded from a CD to an MP3 file, digital information is lost forever. If you transcode that file back to a WAV, the file will not be the same as what you started with. Its quality will be lower. The other thing beginners need to know is that there are various qualities of MP3. The early MP3 files were at a much lower quality than the original WAV file. Recently, MP3 files can be encoded at a much higher bitrate (amount of digital information sent per unit time). For example, a higher quality MP3 file would be encoded as V0, a variable bitrate which roughly averages 245 kbs. A V0 music file will vary in size depending upon the complexity of the song, but it is roughly 1/4 the size of the equivalent FLAC file.
OK, so now for the pros and cons. The average music listener, using low to average quality sound equipment, will usually not be able to tell the difference between a FLAC or a V0 file. Using my “decent but not high-end” audio equipment, I can easily tell the difference between a FLAC and a V2 (approx 192 kbs) mp3 file, especially with a piece of music which has a lot of instruments with a large range of frequencies. The sound of a V2 file will sound less “rich” (musicians call this quality “timbre”). However I have not done a blinded test of V0 vs. FLAC for myself. Also in favor of MP3 files is the fact that most music players (including the iPod) will play MP3 files but cannot play FLAC. I recently bought a SanDisk Fuze, which does play FLAC and $89 for a 8 GB player is a good price. Those who have limitations of storage space will prefer the smaller MP3 files as well but with the rapidly lowering price of external hard drives, the cost of storing a lot of FLAC files will progressively decrease.
Now here is why I prefer FLAC. Some of my arguments are based on emotion and are somewhat irrational, but like I said, there is no correct answer to the original question. First, keeping a collection of 100% “Perfect Rip” FLAC albums, complete with CUE files and gap information is like having the digital equivalent of having an archive of the original CD disks. You can burn these files back onto a CD and it should be digitally equivalent to the original CD. If you need a MP3 version, you can always convert the FLAC to MP3, but converting MP3 back to a CD will give you a lesser quality disk, and you should never transcode an MP3 file back to FLAC or to another MP3 file. You really get a degradation of quality when you transcode lossy to lossy. Now I may be irrational when it comes to this, but I’ve always wanted to get the “best” of everything, so part of why I want to collect FLAC albums is because they represent the very best of music encodes. Even if I do convert them to MP3 to play on my iPod, at least I have the FLAC album for archival purposes. However, my obsession/compulsion to collect the best FLAC has cost me money (external hard drives, seedbox rentals) and time(diligence to freeleech opportunities on my music trackers to build buffer). Those who are satisfied with their MP3 files probably think I’m wasting my money, but my situation isn’t much different from the guy who wants the best in golf clubs, fishing rods, or high-definition TVs. (But my hobby is less expensive.)
Did I answer the question?
Reference: HydrogenAudio Wiki
http://wiki.hydrogenaudio.org/index.php?title=Main_Page




It’s not just any law either. It’s Moore’s Law; something that I expect most of you reading this will be aware of. Just in case you aren’t (where have you been for the last 40 years?!),