Survey researchers and methodologists seek to have new and innovative ways of evaluating the quality of data collected from sample surveys. Paradata, or data collected for free from computerized survey instruments, have increasingly been used in survey methodological work for this purpose. In Web surveys, paradata can be collected at a variety of levels, resulting in a complex, hierarchical data structure. One challenge is that not all off-the-shelf software programs capture paradata, and thus user-generated programs have been developed to assist in recording paradata. Further complicating matters is how the data are recorded, ranging from text or sound files to ready-to-analyze variables. This presentation briefly discusses how paradata differs by mode, and gives guidance on how to turn paradata into an analytic data set.