All video recordings are stored on the microSD card attached to the WDS. The card can be exchanged with any Level 10 Micro SD card with a capacity of upto 128 GB. The Titan-2 System software requires the card to be formatted in a FAT32 format. On a Windows 10 PC you can use for example the Macroit program to format in this format (http://macrorit.com/download.html). In order to format or reformat the microSD card on the Remote Control Tablet follow the instructions in the Support section of the CinVivo.com website.