Self-explanatory, I think...the previous poll being over a year old and there has been substantial development (IMO) across all the major players (barring MPC with little known about WMA).

MP3. I regret it, because I expected during my first listening test in 2003 a massive support of new formats in hardware players. Situation is getting better and better, but in 2006 MP3 is still ruling the marking with minor issues (tag mostly) compared to Vorbis.
Lossless & mp3 (lame) for me.

EDIT: new poll, at last. Thanks

No problem. It couldn't have been easier!...I didn't realize this is where the lowly forum plebians could post polls....I suspect if it meets the approval of the mod gods, that it will get moved to the Poll forum.

Thanks to the likes of Iriver, Iaudio and Rockbox for the Ipod, I am happy to say that Vorbis is flying high in my personal collection.

Still mp3.
Looks like i will like it till every hardware will be able to play and store tons of lossless files.
Maybe i´ll never get the chance to need another lossy format

mp3, because it's the only codec supported by my DAP. And thanks to Lame, excellent quality.

MP3 - sounds good and works with everything. Maybe if my future devices support a format sounding as good as LAME -V2 at half the bitrate, I'd think about switching. Until then, I see little point in dumping my MP3's.

I haven't made a single ABX testing with Vorbis, Mp3 and other formats, but Mp3 is so hardware supported, so standard in industry and with so great quality when i'm listening to, that i'm still stuck with it.

I've been doing some encodings with vorbis tough, but mainly from lossless sources and pc only enjoyment.

Vorbis right now but I'll be probably moving to MP3 in the future.

If you voted for "Other," please follow up with what that entails in the thread.

MP3

I rip CDs and encode to lossless (FLAC these days) and keep a copy on a computer with a very large hard drive. I encode them into smaller lossy files as required.
I tend to prefer Ogg Vorbis, as I can play them in my Treo 650, and small files are a good thing!

The only things keeping me using MP3 at all are:
-I use DJ software that is badly out of date, and still doesn't support anything other than MP3 and WMA (BPM Studio Professional by AlcaTech) but they claim that they will support Ogg Vorbis and not AAC in the next version.
-A friend I share my files with insists on MP3, mainly just because that's what she already has in her collection. (She's not nearly as computer savvy as myself though).

AAC is promising too, but it's a pain in the ass to use, and it always costs money in every instance of an encoder or decoder, which I'd rather not bother with. I do think that the quality is better for ultra-low bitrate lossy encoding.

Axon, I'd be interested in knowing why you currently use Vorbis, but would want to switch to MP3? Did you recently buy a DAP that doesn't support Vorbis?

What do you mean? You surely know that there are free AAC encoders (iTunes, Real Player) and decoders (aforementioned ones, plus Winamp, Foobar, etc)

As of today, MP3. But having just bought an ipod yesterday, I may soon switch to AAC.

mp3 is all my player supports unfortunately, so thats what i use mostly. i like to use ogg sometimes, because i know i can get transparent encodes at 128kbps or below. even more so now, because i use linux, and it just feels right. i hope to switch to ogg completely eventually, when i get a new dap most likely. but as for now, i'm satisfied with the quality of mp3 at -V4 or -V5, and mp3 does have the great advantage of being able to be played on any of my friends computers, as sadly, most of them use itunes or windows media player (aka windows media virus).

i know its ot, but i proudly use wavpack for archiving. its features are unbeatble.

mp3

being that the majority of DVD Players support only MP3, it's going to be MP3... the hardware support is a real stronghold for newer/better encoders

Not even a little doubt. LAME mp3 .

Still using MP3, mainly because of hardware support.
Even though more and more products (mostly, in mobile phones market) start supporting AAC, they are still not fully compatible with it. For example, W800i support both AAC and MP3 but only MP3 tag can be read.

Vorbis baby.

mp3 (Lame of course)...--preset standard averages at 190kbps (Lame 3.97), I can play it everywhere, low power consumption...what else could I be asking for

MP3.

I archived all my 934 CDs in .WV and transcode into .MP3 for my portables.

Vorbis on my H140 due to the speed of encoding of Lancer from my WavPack files.

Back to mp3 for me. I was a dedicated Vorbis user, but with my iPod, PSP, and Dell Axim x51v (love that thing) I realized it was better to use mp3 for compatibility reasons.

MP3. Maybe until lossy is being exterminated.

I expected much more user use LC-AAC with iPod.

After using vorbis for a while, it's back to LAME mp3 -V3 for compatibility with quality. Thanks Gabriel and co.

Well, I rip WavPack images mostly, but if and when I choose lossy, it's still MPC-Insane for me.

Vorbis currently. Faster encoding, nice quality, and my DAP supports it.

Well, for my own enjoyment - the stuff I rip and leave on my computer for occasional listening to, it's Vorbis.

But for the stuff I take around MP3 is the only choice. Work best with my car stereos, ipod, etc and I don't see myself changing in the next couple of years.

AAC - transparent to me at 128kbps VBR and works on everything i have (OS X machine, iPod and SE k750i phone)

MP3.

I can't hear any difference between it and any of the other major lossy formats, so I may as well just stick with the better supported one.

Since I loaded Rockbox on my Nano, ogg vorbis.

Lame @ CBR320 for music (this way, mobile use is overkill, but when I play 'em at home on the hi-fi, they still sound respectable), but I publish my podcasts @ -V5 --vbr-new.

I am also surprised that AAC isn't doing better here. I would have expected most iPod users would have switched.

MP3

Other codecs lack any advantage that I consider to be significant.

Lossless and MPEG-4-AAC for me, and *I really thought more people went that way

I have MPEG-4 in my cellphone, PDA and laptop.
Lossless is kept stationary computer hooked up to stereo.

I use Nero AAC Q2 (~50kbps VBR), it's not transparent but it's really impressive.

Ogg Vorbis. For my personal use it's perfect since I've got a hardware player that supports it, and it suits my ears better than mp3 at lower bitrates. As for sh***ng, I really don't care if people don't know what RockBox is (or don't want to buy a hardware player that natively supports this wonderful codec).

LAME MP3 of course.

I like being able to play my music on my PC, my Xbox, my phone, my PSP, my iPod, in my car, my home stereo, you get the picture.

I don't have the space to store everything lossless, and I wouldn't be able to hear the difference anyway.

I think AAC isn't making a showing because of it's overall failure to deliver on quality claims when compared to the competition. HE-AAC at 64kbps and below seems to be changing that, however (if you can tolerate SBR artifacts).

mp3 (Lame):
very good quality, low battery drain on mobile DAPs, universal usage.

AAC for me but mainly for dvd backup...lossless otherwise of course.

Ever since buying an iPod Nano (with video playback through iPodLinux of course, and Half-Life, hehe)...... still LAME mp3! (-V2 -new) Highly shareable to all my friends, and transparent enough for me that i use this for archiving (dumb, i know, but, oh well, i get majority of my music "elsewhere", and as long as it is at least the old "Uberstandard" VBR, its fine by me)

MP3 is good enough for everything to me.
I don't have any reason to change my mind so far.
Thanks LAME team.

I suppose I eggagerated a bit, but the best encoder appears to be Nero, based on recent listening tests, and that one does cost money. Perhaps that's just being a bit anal, as the iTunes encoder wasn't very far behind.

As for the free decoders, yes, Winamp & Foobar have free aac decoders. Most other software out there requires extra payment though... like players for your palm pilot or PocketPC and such. I'm not really sure how that can be so, however... why do some companies have to pay licensing fees on AAC, and other companies can freely distribute software with support for the codec without paying?

But in any case, this must be one factor that helps to discourage its adoption, especially amongst HA users.

MP3 for the obvious reason it's supported practically everywhere. It's too bad open-source formats don't have as much support.

Any audio that I encode to play on my iriver H120, I use Ogg Vorbis.

But I have A LOT of mp3 files, and still encode to mp3 (LAME '-V 2 --vbr-new') for sharing of non-commercial music only. LAME is truly great, but Ogg Vorbis creates smaller files and same quality for me... and with Lancer it's quicker too.

For personal use: Vorbis, on my iRiver H140, Palm TX and laptop.
For public use: Lame mp3.

I would vote for MPC if at least v7.5 was released.
Ogg Vorbis for the present.

mp3 because it's well known by everyone and because of it's hardware support.

My car player supports nothing else.
Imagine: You host some stuff you just made or recorded and most people can't listen to it because they don't know the codec...

And I use, don't laugh... ATRAC because of my NetMD, damn old thing with a piece of software that's famous for it's crappynes

And flac for archivating/home use

I don't recall seeing any conclusive proof one way or the other regarding battery drain between formats. I do recall seeing something where battery drains more as bitrates increase, but not inherently due to codec format when using similar bitrates.