Some time ago the HDD in my HTPC broke down (it was a WD 2TB EcoGreen disk). I replaced it with a Seagate 2TB drive. But even though I backed up all of my photos and music and most of my movies it was still a lot of work (and time) to copy everything from the USB drive to the (new) internal HDD.
So I decided to get a NAS with two 2TB HDD's in RAID1 configuration. I chose the Synology ds211.
I read some positive reviews on the dutch site tweakers.net (these reviews are for the DS211J). I chose the DS211 because of the slightly faster processor and more RAM.
Especially the many possibilities that the included software offers is a big PRO (among other things: newsgroup downloads, torrent downloads). Another big improvement is the low power usage: 22W when both discs are spinning, 10W when both discs are idle.
But that isn't what this post is about: after reinstalling XBMC to a small SSD I used to replace the internal HDD I experienced choppiness while playing some video files. It was especially visible during panning. (by the way: the SSD reduced the boottime to about 25s!)
It turns out that this is caused by a mismatch in refresh rate of the TV and framerate of the video file. Many video files have a framerate of 24fps, the refreshrate of the TV is 50Hz. Luckily the XBMC crew has solved this problem: you just have to know what options to turn on. Well here it comes:
- Go to "Settings"
- Go to "Video Settings"
- Go to "Playback"
- Turn ON both "Adjust display refresh rate to match video" and "Sync playback to display"
Now playback is as smooth as silk. Enjoy!