PNY SD Card crashed in Galaxy S5

Will some one please help me? Im not real savvy when it comes to this stuff. I have a PNY 64 gb SD card that keeps reading "blank or filesystem not supported" on my Galaxy S5. I have a combination of about 1500 photos and videos lost. they are very important to me.Im not sure if i should try the free version or just pay to see. I am willing to pay for it no problem if i can recover them. im just super afraid im gonna pay for this program it not work and i have to purchase another program. does any one have any tips???

The 'free' Recuva is just as functional as the 'paid' version. What you get with payment is support from Piriform staff. Whether you think you need this support is up to you.

ok thanks.