Limitation on resolution of album art?

[mikey_at_swb]

I'm almost sure this is a limitation of my control point (Yamaha's NP controller), but I thought I'd ask anyway: I just started ripping CDs to my NAS drive. When viewed on the control point, sometimes the album art shows up, and sometimes it doesn't. When I started digging into the metadata, it looks like a jpeg resolution issue: art work only seems to show up when the resolution is something like 500x500 or less. Is this a limitation of the music server or the control point, or is something else going on here?