DriveSnap

DriveSnap is a straightforward software solution for creating a file catalog for the contents of your drives, be they removable or not (CDs, DVDs or USB devices).

Create drive snapshots

When creating a new snapshot, you need to select the drive you are interested in, assign it a name (you can choose its volume label, its serial number or a custom name), then specify the folder to be snapped.
Once this step has been completed, you can start exploring each snapshot - DriveSnap displays a flurry of details for each file from the catalog, such as size, last write time, creation time, last access time, and so on.
A handy function is the search, especially since both wildcards and regular expressions are supported. Additionally, you can export the current file list to CSV, meaning you can export the results of certain searches as well.

Compare drive snapshots

You can create more than one snapshot for each directory, so that you can compare them at a later time. When initiating a comparison, you can set DriveSnap to display only identical files, different ones or the moved ones. If different files are detected, the application can show you the first or the second items exclusively.
When identical items are found, you can define some criteria to make sure you find the contents you are looking for (in order for multiple files to be considered identical, they can have the same last access time, the same creation time, the same last write time or the same attributes).

Conclusion

To sum it up, DriveSnap can come in handy if you want to keep an eye on the contents of your hard drives, discs or USB thumb drives, while also getting the possibility to search or analyze the files, so as to locate duplicates or to detect differences. A scheduler is also included, so you can schedule the app to automatically take snapshots at predefined intervals.