Yes, it exists. The NTSC television system is the prevailing standard in the United States and other regions. It was common for cameras brought from the United States to record in the NTSC system. In Poland and other countries, the PAL television system is in use. To transfer tapes recorded in the NTSC system to a DVD, the signal needs to be converted to the PAL system. You can read more about television systems here. Of course, there’s nothing stopping you from transferring such recordings to a USB pendrive, an external hard drive, or making them available for download on the internet to cherish those preserved memories.