Unable to import AVCHD (BMDV) movies to photos app since High Sierra update

The only way I could get AVCHD movies to import since the updating into the latest version of Photos in High Sierra was to go an indirect route. Using the old iPhoto app I was able to import videos from my Lumix FZ70 SD card. I only had a few to import into my library so all I had to do was export them into a folder on my desktop and import those MOV files directly from there. Changing the date and time under Image to match event date for each video could be an issue if you have many. Also was able to drag copy from the card the AVCHD file to a folder on my desktop and import all of them into iMovie. This may be my workflow until there is a fix.

Thank you very much for the solution

I discovered recently the same importation problem with AVCHD videos from my SONY HX90V.

I removed the A52Codec.component file installed by Perian and now QuickTime opens the video properly

I have a Canon HD Vixia video recorder and never had a problem in the past. The .mov files always showed up when opening Photos on the Mac. They do not show up any longer for import, must have been the last upgrade. Video Recorder is recognized but not the videos so unable to import. Found a way to save them to the Mac but video information does not transfer. No longer plug and play with Apple, horrible.

Mov and AVCHD are not the same. Movs are much less complex and easier to manage. It's like comparing a txt file with a docx. Yes they both contain words but one is a whole lot more complex than the other.

That is what I was referring to. My camera, by default records videos in the AVCHD format and I was having trouble importing them under High Sierra. Photo will import them from the SD card but not High Sierra Photos app.

Thanks again. The Canon showed up fine in iPhoto, along with the .mov files on the video recorder. I was able to import the files and information such as date, time, etc. were in tact. Moving them to the desktop and dragging them into Photos did not preserve the file information however, wish I could remove Photos and go back to iPhoto. Photos on the Mac was/is a mess in my opinion. Steve Jobs would not have been happy with that one.

IN iPhoto: If you were to export the video files to a desktop folder, then import those videos into PHOTO app all the info data should be intact. You can fix the date and times from within High Sierra Photos app.

This (opening the AVCHD folder in finder and dragging into Photos) didn't work for me using a folder in Photos, but it worked well using an album, thank you. You do have to update the dates as they come across with the import date.

'The operation can not be completed' I can ver the videos on the canon C100 but unable to see them on the computer or SD card or within final cut - which is what I sued to do. Unaware that software was updated.

Wow! After weeks (months?) of wondering about this, today through this list I found two You Tube videos that explained how to find the AVCHD files, convert them with Quick time and be able to see them on the Mac and also use them in iMovies. It seems the simpler solution would be to stop recording in AVCHD if your camera has the option -- my Panasonic Lumix cameras, do. I'm posting this in hope that it will be useful to others struggling with this issue.

This first video, which helped me, is followed by a second even more detailed one.

How to View & Convert AVCHD Format On Panasonic Lumix DMC-ZS25 (Mac) - YouTube

Do you get the file info. OK or, when you select a clip and hit ⓘ, do you get this sort of thing?

I get this for both old and new clips.

Did you try b.art's response? Did that work by any chance?

Same issue but with AVCHD files (.mts) from a Panasonic GF1 system camera. Worked fine in Sierra but not at all in High Sierra.

Thanks ChurnetMan for the workaround and looking forward to a permanent fix!

I still have my old iPhoto.app on my iMac. it works fine. Also if I import from the SD card to iMovie there is no sound with the video clips.