I'd say it depends on your needs... If you want SPDIF input, go with the HiMD. If you want 24/48, go with the R09. I think both a great pocket size recorders...
Terry
I tape rock bands 99.9% of the time in big arena's and some loud clubs. I have never had a problem taping with my MD so that's another reason to stay with the MD or I should say upgrade to a HI-MD but the R-09 is very tempting.
I think your mic set-up is most important when you think of how loud the source is... If all you need is a line-out, SPLs make no diff, at least recorder-wise... Basically, if your mics can handle the volume, it doesn't matter what you recorder is.
If you are running an analog line-out out of your mics, or require an analog line-in, I would use the R09 as it provides 24/28 recording capability, as well as all the features of the MD. 24/28 allows use with any future format or DVD etc. 16/48 with HiMd is just fine, however.
The R09 also uses easily reusable media, in the SD card. Dump your audio onto PC a lot faster than a SonisStage transfer and reforamat of the SD card alleviates any problem with reuse.
Also, the R09 w/ 4gb card offers longer taping time than a HiMD.
Sounds like I'm voting for the R09...
Terry