How To Close a BD-R / BDMV in a Subsequent Session?

[Mark Fry]

I'm using Power2Go 6.0.0.2221 (SR #: CDS080926-02), which was supplied bundled with my LG BH08LS20 burner. I'm running Windows XP SP3 and Toshiba UDF2.50 drivers, as recommended by my PC supplier. I've been burning Blu-rays with this set-up for about 5 years.

I burnt a set of video folders (my own production, so my copyright) to a blank BD-R but didn't notice that the "Close disc (no futher data can be added)" option was NOT checked in the Configuration/Information; Burner tab. The resulting disc will play in the computer but not in a Sony set-top Blu-ray player.

Can I rescue the disc, and if so how? I imagine it should be possible to add a small, harmless file in a second burning session and make sure the Close Disc option is checked. But what is a "harmless" file in the context of a BDMV video disc, and where should it go?

If it was just one disc, I'd throw it away and put it down to experience, but I actually burned 4 copies each of 2 different productions that evening, all with the same mistake, and I'd rather not waste 8 discs if I don't have to.

I've already asked this question on the CyberLink forum, but I don't think anyone understood the question, given the less-than-helpful response I received there.

Is it possible to "close" this disc in a second session and so restore the ability to play in a normal blu-ray disc player, and if so, how?

It's a BDMV-format blu-ray disc. The actual video footage is 1080-line MPEG2, c.25MBps, one of the standard Blu-ray video formats. I've used that Sony blu-ray player to play discs I've burnt using Power2Go in this format for several years. It continues to play other discs without problems. It's just the batch of 8 that weren't closed correctly during the first writing session that are causing problems.