How long can I record for with a 32GB MicroSD card? GoPro HERO3 / HERO3+ Black Edition (Protune OFF) - YouTube
GoPro HERO 3 SD Card Recommendation
Amazon.com: SanDisk Professional Ultra 64GB MicroSDXC GoPro Hero 3 Card is Custom formatted for high Speed Lossless Recording! Includes Standard SD Adapter. (UHS-1 Class 10 Certified 80MB/sec) : Electronics
Amazon.com: 64GB Memory Card for GoPro Hero3 Hero3+ - Sandisk Ultra 64G micro SDXC Micro SD UHS-1 TF Class 10 for Hero3 White Edition / Hero3+ Black Edition / Hero3+ Silver Edition