I should mention that it does NOT come with a micro-SDHC card. You'll have to purchase that separately. FWIW, I bought a 16GB Class 10 Kingmax micro-SDHC card. When buying memory, follow these guidelines:
1. It must have a speed class of Class 6 or higher. It records in 'almost' HD quality so transfer rate is crucial. That said, those cheap Class 4 micro-SDHC from CDR-King will probably choke and you'll end up with incomplete or corrupted videos
2. The store where I got it from recommends a minimum size of 8GB
3. The memory must be formatted while inserted in the DVR (Menu>Format Card). What it does is, it copies an application on it (JPlayer) which you can later run on a PC to view the videos (see last pic on my first post). The video files are stored in a hidden partition and only this program can see them. The videos can't be natively seen by Windows, afaik. However, you can use this program to export the videos to an AVI file to be saved in your hard disk, if you want.