How can i record something quickly?

If this is a belt drive turntable the belt might be in the wrong position or is slack due to wear.

This could be something to do with the size and class of your memory card. You usually need a class 10 card for the higher read and write speeds.

Sounds like it. Check with your manual.

Sounds like it does not have enough memory to record. Transfer the files off the memory card, or get a bigger card and the higher speed class (ten) is preferable, as some of the cheaper memory cards are too slow to handle live digital recording.

The SD memory card maybe too slow. Use a class 8 or class 10 SD memory card.

If you are try to video capture and the SD card is a Class 4 speed then it is too slow for videos.
Use a Class 8 or Class 10 SD memory card and this will fix your problem.

This camera can use SD or SDHC cards up to a maximum of 8GB (gigabytes). These cards come in different "class" ratings. A class 4 card will provide faster access than a class 2 card. Video cameras like faster access cards and some specify that the card should be class4 or class 8. The card will have a number printed on it, maybe inside a capital letter "C" if it is faster than a class 1.

The manual for this camera does not specify a minimum class rating for the card.

Sandisc makes cards in various speeds or "classes". For videos, it's best to use a class 6 or better card. Sounds like your new 8GB card is a class 4 or lower.

The higher the class number, the faster the card will record the video with no problems. Go for the Class 10.

Do you have your operation manual? It will tell you how to set up a timed recording. Recording options are set via the remote. Look for an option as "Scheduled recording" or similiar. Date, start & end time, channel, recording speed are all set. If you are missing your manual do a google search with your model number. A quick look at the Samsung website was not fruitful.