I have an early model Q5 (build date 2008) with satnav and 2 SD slots and it takes SDHC without any problems. Currently using a 16 Gb card.
I believe I read somewhere about a limitation on files / folder (I think it was 1000 files/folder and it may have been here http://www.audiforum.us/mmi/ ). It seems plausible as I've experienced the limit myself - playback still works but excessive files are not displayed. I didn't count the visible files to verify the exact limit ;-) just split them up into three folders of about 700 files each and all was well.
I believe I read somewhere about a limitation on files / folder (I think it was 1000 files/folder and it may have been here http://www.audiforum.us/mmi/ ). It seems plausible as I've experienced the limit myself - playback still works but excessive files are not displayed. I didn't count the visible files to verify the exact limit ;-) just split them up into three folders of about 700 files each and all was well.
