New owner here, with a couple of questions:
How do you view the date/time stamp of individual recordings during playback in the scanner, or via Sentinel?
Also - can you mass-delete recordings from the Scanner?
I'm unaware of a means to do this on just the scanner.
You can do this if you were to connect your scanner to a computer and choose the Mass Storage Mode. Then using the computer's Windows Explorer, navigate to the USB Drive which is the scanner, looking for BCDx36HP. From there, continue to the BCDx36HP/audio/user_rec folder and you will see folders of recordings. The folders are date/time stamped and you can drill down for individual recordings, also time stamped.
This is where you can copy and paste as well as delete one or more recording files just like any other file, using Windows Explorer.
Do yourself a huge favor and download the Uniden Wav File Player here. It was developed by a member here and is free but if you find it useful you can donate. I linked to the latest version but you can read the entire thread if you want. It will do everything you want.
It is very easy to use. Unlike Windows Media player that just plays the audio, this one shows time and date stamp and all sorts of info. You can sort by the different column categories, filter by specific things like talk groups or radio ID and rearrange or remove columns. Once you locate the folder and read the files into the Uniden Wav Player it remembers the folder location so next time you just read into the player without having to specify the location of the folders with the recorded files.
Plug in the USB cable to the SDS 200. The scanner asks if you want to go into mass storage mode. You press the yes or enter key and then go into Windows explore and find then SDS200 and navigate to the audio->user folder. You will see the folders each containing 100 files (transmissions) with the last folder containing what was recorded up to the time you stopped recording. I use the cut and past command to move these folders into a folder called "SDS200 Recordings" where I have the Wav Player read them from. The cut and paste automatically mass deletes them from the SDS so that takes care of the mass delete you were looking for. Hint- You can do all the above without stopping and saving the recordings on the SDS200 first. Not 100% sure if this also captures the last folder of recordings in progress but when I did this and checked the SDS200 there were no recorded folders so pretty sure it does.
The Uniden Wav File Player is a life saver. Without it I would have worn out the keypad on my SDS200 navigating from folder to folder, pressing play, pressing delete folder, and all the confirmations to do these, not to mention how tedious that is.
The developer is good about bug fixes and adding features. Note, when I read the files into the player the most recent saved recordings are first and the player plays them by scrolling down so the transmissions are in reverse order. Simply click on the date and time column and it will reverse the order. I asked the developer to correct this but he said different computers will sort it differently so just do as I said if you have the same issue.