The URL is an address of a storage location for your photos that someone wants you to use. If this is on your SD card and you DON'T want to use it - then scrap it.
If everything is working OK there should be video files on your card. These should have a suffix like .mts or .m2ts and can be dragged across into your Mac.
I think "Imageshack" is a piece of software that has been put there to make you spend money. If the video files are in a normally recognised format then work with them in your own computer.
Sorry I cant help more but I am a PC user.
question 1.) when i plug in my sd card in the mem card slot in my macbook pro retina mountain lion this automatically appears: http://imageshack.us/photo/my-images/153/7vyu.png/
it says it's empty but it really isn't. so why does it appear empty?
when i open the my sd card icon on my desktop the contents are these: http://imageshack.us/photo/my-images/692/b0b0.png/
i dont know what is the use of the one where the icon is a folder but the folder where the icon is a quicktime player is filled with all my videos captured on my JVC GZ-E306BU. Apparently, that is its default place after i record.
question 2.) when i click the folder with all my videos in it, it shows this: http://imageshack.us/photo/my-images/801/e86d.png/ i can only play it when i click it. i cant drag it around or right click it. why is that?
question 3.) i want to edit it in premiere and if i want to import it i cant choose and click just one video since it also doesn't show the individual videos. it has to import the whole folder. when it does, there is no audio. why is that??? i can only edit the video. it looks like this: http://imageshack.us/photo/my-images/560/u3d4.png/
for anyone who can answer all my questions will have my my undying gratitude for I have been at this for days.

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