Originally Posted by Viacheslav
I was following this thread and it was confirmed several times that FAT slows down file browsing and is suboptimal. What about switching to some other Linux FS e.g. ReiserFS? It was tooted as being fast with many small files. Besides, an Ext* formatted new empty HDD has noticeably less free space than the same HDD with Reiser, because Ext needs more space for system data.
is perhaps an interesting article on this question. According to the article ext4 is probably the fastest.
I don't think the DR supports ext4 right now, but perhaps this could be added? The SD-card would wear down faster though because of the journaling.