Two files taking up 99% of my SD card - can they be deleted?

Hello all:
There are two files on my SD card which are taking up virtually 99% (not literally) of the space. The files are as follows:
- thumbs129x129.dat (982,674 KB)
- thumbs800x800.dat (777,784 KB)
That accounts for a total of 1.67 GB of the available 1.81 GB on my SD card. Both files are located in the "X:\BlackBerry\system\media" folder.
An earlier post about thumbnails not loading suggested that these files can be deleted as I think that the file has been amassing thumbnails for images that are long deleted (I have no files in the camera folder at all now). Is it safe to delete these clogging files? I have since deleted every video, ringtone, music file etc to make space and I am now down to space for only about 50 photos on the card.
What do you think? Good to delete?
Thanks.

Hello jncorp,
Thank you for your question.
I would suggest you back up your media card to your computer and then delete the files to see if anything has changed. Let us know what you discover.
Have a good day.
-SR
Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
Be sure to click Kudos! for those who have helped you.Click Solution? for posts that have solved your issue(s)!

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Come follow your BlackBerry Technical Team on twitter! @BlackBerryHelp
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