I have a jazz DVX50. The problem that I am having is I inserted the SD card and all it will keep reading is read card...

max size of card supported is 8 gb for that camera

Format should take only a few seconds. Confirm if the card has a "protect" switch, and it's turned so you can access the card.

SD cards have a slide switch along one edge. The position farthest from the metal contacts locks the card, protecting it from writes. The position nearest the contacts unlocks the card.

You can purchase an SD card any time you want, the DVX50 supports SDHC cards but will not support any card over 8GB. I suggest you take the camcorder to Best Buy so you can make sure you are getting the right SD card.

push the card in with a pen or a butter knife or something skinny. then the card will release and pop out

You need to format the SD card correctly for the JAZZ to read it.
Google SDFormatter and use that - a standard windows format will not work for MOST cameras and video devices.

SDFormatter is your answer:
https://www.sdcard.org/consumers/formatter_3/

I used this and it fixed my 8GB SDHC and the JAZZ dvx50 read it without a problem.

Hello
Remove the SD card from your camera and insert it into a memory card reader that is able to read SD cards. From there you can format your SD card and make it usable again.
Good Luck, hope it helps, if so do rate the solution

Usually the first thing you need to do with any SD card and Camera is to go into the settings of the your camera and Format the SD card. This has to be done for each memory card you use with that camera. i.e. a SD card formatted on a Panasonic HD camcorder won't work in your Jazz Camcorder. The formatting is different between the two camcorders. New SD cards don't come formatted.
SO try inserting the SD card into your Jazz Cam and rummage through the setting until you find your memory settings. From there find the Format Memory Card function, format the SD Card and you should be good to go.

Make sure your SD card is really snugly inserted to the device. Also check your SD card compatibility list on the manual. Some SD cards have issues with electronic devices.

If the card is read on your computer, try reformatting it..