This document summarizes a panel discussion on researchers' data documentation practices. It finds that metadata is often not sufficient because data itself is messy and domain-specific. Researchers in different disciplines like chemistry, ecology, computer science, microbiology, and earth sciences approach documentation differently based on norms and needs within their fields. For example, chemists use numbering systems and documentation protocols while microbiologists emphasize keeping detailed lab notebooks. The document concludes more interviews are needed to better understand disciplinary practices and tailor library services accordingly.