I have been using an external drive to record from a HD-FOX-T2. I also have a HDR-FOX-T2 and would like to move some recordings from the HDR's disk to the HD's disk with minimum fuss and tools. Probably the easiest way to do this is just to plug the HD's disk into the HDR and copy some of the SD programmes over. Will that cause any issues in continuing to use that external drive on the HD-FOX-T2 with its existing recordings or record functionality? The reason I ask is because of what I am seeing in the Data Storage menu for my external drive. The HD displays: Available Size ... 598.0GB...... Used Size ... 318.8GBReserved Size ..... 20.0GB...... Total Size ... 916.8GB The HDR displays for the same external drive: Available Size ... 614.0GB...... Used Size ... 302.8GB...... Total Size ... 916.8GB The figures suggest that the HDR thinks there is 16GB more of the space available than the HD thinks there is, and the HD thinks that the same 16GB is being used. Is this just that the Data Storage displays are not accurate or is it feasible that the HDR could overwrite something essential to the HD if I copy recordings on to it using the OOTB copy functionality?