heatgun

Hi all, I have six, old Panasonic BB-HCE481A IP cameras, I used to have a software on my computer whree I can record, watch and play with settings, I no longer have it and no longer wish to record at computer, Since my cameras are old (at least 6-7 years old) can I find a NVR that would record from my Panasonic BB-HCE481A ? I would like to be able to PTZ as well, what would be my best option? I am open to buy a whole brand new computer, use as NVR but my first preference is to get a small NVR box if possible, thank you !