Well it worked fine for me. Make sure you:
1: patch it to NTSC 352x480 or 720x480 using the "custom" size setting(obviously)
2: Keep the bitrate field the same (copy the value in the right box to the custom bitrate tab).
What decoder did you try? I played my patched files with the elecard player (
www.elecard.com) and it played perfectly. Like mikeathome said, it won't display properly in Maestro's thumbnail window, but it will when you use the software/hardware previewer.