Estou ficando abaixo do erro ao converter o arquivo .arf para o mp4.
root@milind:/nbr2_mp4# ./nbr2mp4 '/home/milind/Downloads/devops_practitioner_batch_3_aug_26-27_sep_2-3-9-10-16-17_2017-20170902_1327-1_1504381584.arf'
Converting /home/milind/Downloads/devops_practitioner_batch_3_aug_26-27_sep_2-3-9-10-16-17_2017-20170902_1327-1_1504381584.arf to /home/milind/Downloads/devops_practitioner_batch_3_aug_26-27_sep_2-3-9-10-16-17_2017-20170902_1327-1_1504381584.mp4
Retrieving video data, fps=5...
Cannot convert recording file because it is not a valid file format. Specify an Advanced Recording Format file (.arf).