Running a 5200 PRO with one folder called movies and around 4,000 media files (.avi's, .mkv's). I can copy a file very quickly but when I open it with a media player (windows media player, BS Player, Media Classic) it takes about a minute to open a 700Mb avi but 5 minutes to start playing a high definition 4Gb mkv file.
If I then move the 4Gb file into a sub-folder where it's the only member, it opens and starts playing immediately.
Any ideas?