Last week I transferred files from SD card to external NVME (Western Digital Black Edition 1TB formatted NTFS). Two SD cards were video + lav audio and third SD card was shotgun mic audio transferred to respective folders on the NVME. All three SD card files transferred. On reboot, the folders were gone. Luckily, the SD cards that had the video plus lav audio were not yet formatted. The shotgun mic SD card was formatted. I then used EaseUS recovery trial software that located the folders on the NVME and retrieved the shotgun audio. Because the files were under 2GB (maximum retrieval for trial software), I was able to recover all lost files. I cannot have files walk away on me like that or play "hide and seek". I copied respective folders to other storage mediums, an SSD and a WD Black edition HDD. If I want to make sure my files *STAY* on the drive when I work on a project, what do I do?