I format the disk in my MAC computer, but it still display disk error and can’t working. Pubdate:2018/07/21 Visits:114 ClassificationFAQ Please use Windows PC computer when formatting the disk. Last page: What should I do if the device showed “disk error” or “format error”? Next page: VOR level can be set 0-35. It is not clear what is 0 and what is 35? When it is set to 35 then also a quiet noise would trigger the recording, why?