How to download video from youtube to micro sd

64GB and higher capacities need to be formatted with exFAT.
Some help: https://www.youtube.com/watch?v=JA9fp863d-o

A tool for formatting SD and micro SD cards is SD-formatter:
https://www.sdcard.org/downloads/formatter_4/

Your video is stored on your phone's micro SD card already. Remove the micro SD card in your phone and mount it in your computer, Ipad or tablet. You may need an adapter. Once you have removed and stored the file you can transfer it to any other device or SD card or manipulate the video file in your computer. Or you can try a direct USB connection from your phone to a computer. May need an adapter cord for that.
All else fails - open a free account with Dropbox and upload your video file from the phone. Store it there and distribute as you see fit. Sometimes you can send a large file with a text message, also.

Did you try inserting the micro SD card into the PC? You can buy a micro SD to SD adapter then just get an SD to USB drive to easily move files between micro SD and PC assuming the USB cable isn't working for whatever reason

install software for downloading videos from the you tube (like keepvid) then copy it the sd card, you can attach sd card through card reader on a usb port

download the menu fron their site on to the ROOT of the sd

It shows that the memory level of your memory card is full so either you delete some infroamtions there or go for a bigger memory like 8GB

go on the side on of the sd card there should be a little switch make it go up and there

You Can Download Free MP3 From Youtube By This Site : video2mp3.net
If you didn't found Your Favorite Music In Youtube Try These Sites : Beemp3.com or 4shared.com

http://ca.youtube.com/watch?v=ojzZeO2RAkc watch this video for instructions on how to repair.

You probably don't have enough memory on your phone. It's a good idea if you buy a micro sd. goodluck....