I get this error with the latest version:
Warning at /myth/mythtvburn/mythwebburn/mythtvburndvd_confirm.php, line 49:
Invalid argument supplied for foreach()

Line 49:
foreach ( $_GET['burnfile'] as $burnfile) {
$burnfile = StripString($burnfile,"/myth/tv/");
$filenames[]=$burnfile;
}

I had it working with R4V4 in August but my PVR-250 had serious audio issues. I went back to R3 and all was well again. I haven't tried R4V5 yet... if that's my only solution I'll do it... otherwise I'd like to patch what's working