.VOB file not recognised in Adobe Media Encoder CC 2018

[annef18791946]

Can anyone explain why when I import .VOB files into Adobe Media Encoder CC 2018 to export as MPEG2 (match source - high bitrate) I can't play the encoded file?

The encoding takes place and I can see the .mpg thumbnail view in Media Browser but I can't open the file in 'reveal in explorer' (Windows 10).

[Moderator: Moved from Adobe Creative Cloud​ to Adobe Media Encoder (AME)]

[SAFEHARBOR11]

What will the exported file be used for? MPEG-2 is largely obsolete for delivery, replaced by the more efficient and more universally playable .mp4 format - could you export to H.264 instead?

Thanks

Jeff