I would leave it as it is
Probably TMI, but the reason for the 4.2 GB file size is that this is the largest memory size that can be addressed with a 32 bit processor (2 to the 32nd power). This is common in many digital cameras. Once the max file size is reached, the file is closed and a new one is opened. If you put them together in your editing software, they will be seamless.
I stand corrected. I always thought it was because they stored the data in RAM then transferred it to the storage device, thus the addressable memory limit became a defacto storage limit. I shot quite a bit of video on Canon DSLRs that had the same issue. Unfortunately in those, the recording would just stop after the limit was reached.It's nothing to do with 32-bit processors, their limitations are for addressable memory not storage so there's no problem having files larger than 4GB each on a 32-bit system. The FAT32 format is limited to 4GB per file but exFAT isn't which suggests there is some other internal limitation.
John
I stand corrected. I always thought it was because they stored the data in RAM then transferred it to the storage device, thus the addressable memory limit became a defacto storage limit. I shot quite a bit of video on Canon DSLRs that had the same issue. Unfortunately in those, the recording would just stop after the limit was reached.
Thanks for correcting this.