Dsc01734.jpg File

: This prefix stands for "Digital Still Camera." It was popularized by Sony and has become a staple for their Alpha, Cyber-shot, and NEX series [Sony Support].

Default filenames represent a specific era of technology—the transition from physical film rolls to infinite digital storage. DSC01734.JPG

: This indicates the Joint Photographic Experts Group format. It is the most common image format in the world because it uses "lossy" compression to keep file sizes small while maintaining enough detail for the human eye [Adobe Creative Cloud]. Why This Filename Matters : This prefix stands for "Digital Still Camera