Question faulty USB flash drive saga

Jan 4, 2021
Would someone be so kind as to help me? I thought it would be a great idea to download Murder, She Wrote. Laptop didn't have enough GB free So I thought it would be good to use a USB flash drive. Sadly I ran into trouble trying to skip ahead in an episode and noticed my 'season 2' folder was all now gibberish. I removed the usb flash drive and re-entered it, only for the :D drive to say 'please insert disk'. I tried all the recommended tips, the only thing I found to help was getting the details from ChipGenius and running ALCOR_MP_v16.02.19.
This got the Usb flash drive working again! However, my previously 50 something gb (assuming its 64gb with some used up data) is not only blank, but also gone right down to 15 - 16gb capacity.

If anyone could explain what happened, how to avoid it, how I might get back my season 1 and 2 files of murder she wrote ,and how to get it back to full capacity, I would be very appreciative!

Here is the copied chipgenius details!

Device Type: Mass Storage Device

Protocal Version: USB 2.00
Current Speed: High Speed
Max Current: 100mA

USB Device ID: VID = 058F PID = 1234

Device Vendor: Alcor Micro
Device Name: Mass Storage Device
Device Revision: 0001

Manufacturer: Generic
Product Model: USB Flash Disk
Product Revision: 7.76

Controller Vendor: Alcor Micro
Controller Part-Number: AU6989SN-GT [EC05] - F/W 940D
Flash ID code: 2C84643CA500 - Micron MT29F128G08CBEBB - 1CE/Single Channel [MLC-16K] -> Total Capacity = 16GB

Tools on web:

Possible Flash Part-Number
[1CE]MT29F128G08CBCAB x 1 pcs/Channel x 1 Channel
[1CE]MT29F128G08CBEBB x 1 pcs/Channel x 1 Channel

Flash ID mapping table
[Channel 0] [Channel 1]
2C84643CA500 --------
-------- --------
-------- --------
-------- --------
-------- --------
-------- --------


Seems like you simply need to replace the USB storage device.

These devices are notorious for failing and why you should never rely upon them as the sole source to keep files. These sorts of malfunctions are VERY common with these devices.