Missing files in SD card

[xCard]

I put my SD card in to a tablet to copy mp3 files, then I put it back to my phone(xperia M) it works for a while with no sign of problem. The phone was turned off because it was already low in battery and when I turned it on I can no longer locate my files and when I checked my SD card in file manager all I see was a weird file names that cannot be opened. Is my SD card infected by a virus? Or there is something wrong with my phone or the SD card itself? Help.

[_alexdon_]

Probably during the copying process if the phone turned off,it affected the files.

[xCard]

I apologize for the confusion. Actually it was perfectly fine after I copied the files from my tab, I went out with my friends while playing the mp3 files using my phone for a couple of hours with no problem and even the videos were fine. It all disappeared after I charged it and turned on the phone, all I see was weird filenames.

[Uliwooly]

Let me see if I understand, you were using the SD card on another device, how did you unmount the SD card? did you just pulled it out? if you did that explain this issue 

[_alexdon_]

Strange,and the files are no more there?Can you find all those strange names in a folder called LOST.DIR in internal memory or sd card?

[xCard]

Yes I was using a different device to copy a file and I unmounted the SD card in a proper way. There was an option from my tab to properly unmount the SD card before pulling it out.

[xCard]

all that's left was wierd filenames that cannot be opened. To my confusion i deleted those files and i was afraid it might be a viruse that could harm my phone. I just checked LOST.DIR it's empty.

[_alexdon_]

They are still shown in walkman or movies app?Or they are gone now?I think it might have been a small glitch or a problem with the card.

[xCard]

They're no longer in walkman or movies apps. That's what I'm thinking also that hopefully it's only the SD card problem, not my phone 

[_alexdon_ · Accepted solution]

Probably by inserting it in two different devices with a different reading/writing speed,it might have had some glitches.I do not think it is the phone.You could try and move 1-2 songs,see if that appears again.