Ozpeter's success with the nx8220 contributed to my decision to buy a 2Gig version. Follow this link through laptops, HP Compaq to product ID 119127, then click on the 'i' icon.
http://cworld.com.au/Aussie dollars of course. The extra (free) 512MB RAM and carry case could be as much as 56 days away!
After making a few of the usual performance changes, I've just finished a 95 minute recording on 16 tracks, 44100, 24 bit, using Tracktion, with the Mackie Onyx 1620 (firewire) and an external hard disc (USB 2).
The lack of any reasonable level indicators in Tracktion is made up for by the quite reasonable level indicators on each of the Mackie channels. By soloing a Mackie channel, the main level indicators can be used for setting up, providing even better resolution.
I then transferred the external drive to my main desktop and played the files in AA1.5. The recording hadn't missed a beat.
Playback in Tracktion on the laptop was choppy for the first few seconds with files of this size. It was OK though with reduced track count.
it (Tracktion) seems very prone to stopping recording, eg if I simply click on a track.
Yes, I find the same - it seemed to stop recording for a number of unexpected reasons, and if there are some playback problems as well (but their cause isn't established yet), Tracktion might have to go. But I haven't yet ruled out operator error!