FLAC vs. MP3 for Sonos Network

Hi, I have been using Sonos for almost 2 years. I have over 40K songs. Based om my tests, I have found that mp3 encoded with EAC and LAME at 256 VBR offers the best compromise between size and quality. I find this to be absolutely near cd quality. For critical listening I still use my CARY 306 cdp. Note, that I use the digital out of the Sonos ZP80 into the DAC of the Cary.

Compatibility and overall library size were major considerations for me.

On a good system, you're going to notice a BIG difference between MP3 and FLAC. I have a RWA-upgraded Squeezebox running FLAC and it sounds MUCH better than the CDP I have. MP3 always sounds very compressed, screetchy and bandwidth limited.

I would go with the FLAC format and create a folder on a PC where you can dump MP3's. You can convert "down" from FLAC to MP3 easy enough. I delete and add to my Ipod about every 2-3 months. I would go through my FLAC collection and select what you want to listen to on the Ipod - convert and dump it in the directory. You would leave your FLAC collection in tact but use an additional 60 gig of drive space for the converted MP3's to dump into the Ipod. In short the best of both worlds.

I went with the MP3 format and now have collected about 3000 converted CD's all ripped at 320bps. The sound is pretty good but I REALLY wish I would have gone down the FLAC road. Harddrive space is cheap but it's too late. You cant get back resolution you gave up and most of the CDs have been sold or traded.

I agree with Horseface about choosing the FLAC format. Initially, I chose WAV format but have discovered that I gave up a lot of available tagging information. One disadvantage of FLAC is that FLAC is not read by Windows Media Player. However, the WMA(lossless) format is not read by Sonos. The FLAC format seems to be the best compromise to preserve your options for the future - tagging information, storage space, and downward convertibility to MP3 or other format.

I am in the process of converting CDs to use on a Sonos system. The Sonos website contains a document which I wish I had read before I began the process. Here is the link
http://www.sonos.com/documents/tutorials/sonos_music_primer.pdf

In this document, you will read about some software programs (free to low cost) which may make your life easier. For about $400 you can get a router and a 500 GB network storage drive. Also, check with the Sonos technicians before selecting a router. Not all routers work equally well with the system.