hi. i am new to the forum and i would like to say thank you for the welcome, i have just purchased the eurovox ex7000 hd and i am well pleased, i have tried a 4gig usb to see if it recorded ok and it worked fine i am going to get a 32gig usb but i have been told that there is a 64gig usb coming out. i would prefer using a usb rather than a external hard drive,as anybody heard of of the 64gig usb,again thank you for the welcome.