Apple’s iTunes Plus is here, featuring higher-res files and no DRM. CDM reader Ryan Pollack points us to Slashdot, where readers are abuzz about a Maximum PC taste test shootout:

“Maximum PC did double-blind testing with ten listeners in order to determine whether or not normal people could discern the quality difference between the new 256kbps iTunes Plus files and the old, DRM-laden 128kbps tracks.

But wait, there’s more! To add an extra twist, they also tested Apple’s default iPod earbuds vs. an expensive pair of Shure buds to see how much of an impact earbud quality had on the detection rate.”

The result is, not surprisingly, better headphones are better than poorer headphones, more bits are better than fewer, and both is better than one or the other, but bits are more noticeable if the headphones are worse. If you want to spoil the results of the Maximum PC shootout, read that sentence nine or ten times until it makes sense.

Apple Takes a Bite out of DRM [256 kbps versus 128 kbps bitrate, at Maximum PC]

So, who here has given the iTunes Plus store a try? (Old news to many of you; see our previous stories, As Other Music, Others Embrace Downloads, is Big, DRM-Laden Online Music Out? and Where Do You Get Your DRM-Free Music?)

I expect you are truly discerning listeners, of course. Get someone to help you with the blindfold. Slapping your forehead against an Apple Cinema Display hurts bad.

Sure, between applications as full-featured as Bias Peak and Apple’s own Soundtrack not to mention freeware like Audacity, Mac users are a bit spoilt for choice when it comes to audio editors. But for those like myself who long for the simplicity and elegance of the long gone SoundEdit, Rogue Amoeba may just have the answer.

Fission is the first (and currently only) OS X audio editor to support lossless editing of MP3 and AAC audio. The software has a super simple interface which provides an accurate dual-waveform view and a handful of editing commands that let you split, cut, crop, and fade audio. While still clearly a 1.0 version, it does have some slick features including audible audio scrubbing.

Fission’s streamlined interface is a joy to look at and use. Its only flaw may be that it is too stripped down for some. With a few more features, particularly support for VST and AU plug-ins, Fission could become my go-to audio editor for those times when bringing up Peak is just overkill.

Fission works with mono and stereo MP3s, AAC, Apple Lossless and AIFF audio files and is available now as a Universal Binary that runs natively on PowerPC and Intel Mac for US$32.