The ones you listed (and basically all the ones that exist) probably don't handle the scripting part of Kontakt, which'd reduce the benefits of conversion. And apparently Chicken Systems Translator Pro is said to be so buggy that it's has been called 'alpha software sold for money', and there is supposedly incongruence between formats advertised as supported and formats actually supported. Personally, somehow, I can't get myself to trust any sample converter...or maybe it's the lack of a 'proper' solution (sample format support on Linux or sampler software supported by the company on Linux IMHO) that irks me when I hear of them :\
As for a native converter (or alternatively a sampler for these formats) on Linux - I spoke to nilsge and kfoltman about it earlier, offering to donate for and to test such programs, and...the idea was shot down and called impossible. I guess if the devs say it, one accepts it. And that's the way the cookie crumbles. >_>
Good to hear that. However...tnovelli wrote: Ok, so we could use a *polished* sampler and a sample/patchset converter. I've actually got a small start on that, so I'll bump it up on my (long) list of projects.
Here's what I have in mind: I want a sampler that lets you zoom in on the waveform (kinda like Audacity) to adjust start/end/loop points. Graphical ampeg/adsr editing would be nice. All the SFZ parameters should be editable in realtime (with GUI knobs, MIDI mapping, etc) - I shouldn't have to text-edit the SFZ and reload it. And of course it needs a quick way to assign MIDI note ranges to samples. And layers. Yep, pretty complicated; no wonder it hasn't been done yet.
The truth is, I kind of don't know where this sampler ends and a sample editor begins And realtime GUI editing of SFZ parameters is already in the roadmap of calfbox/lisalo-qt (I think), and I suppose the rest are, too, seeing as the project is fairly ambitious.
What we need is for someone to reverse engineer the Kontakt and VSL formats and implement them in a sampler, and fast (fast, because the users need them now, not when the formats are long dead and gone (er-hem, GIG)).