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Pie chart in properties of a data CD

I am not a computer newbie but thot this question I have is such a simple basic part of Windows that I should post it here instead of in the PC Utilities forum.

I want to know about the pie chart when you put a data CD in, it opens with auto-play, and shows what is in the CD. I don't open that first folder. If I hover the mouse over that first folder, it gives me the size of the folder, in MB, for example. Then if I right click on an empty space and choose "properties", I get a pie chart that shows a bunch of info about the CD but what I am looking for is the "free space" and the "used space".

Why doesn't the pie chart show the same info as mouse hovering over the folder does??

I've questioned this since my newbie days. The propertie's pie chart never seemed to fit what I was doing or had done. For example, I knew that my CDRs had 700MB of space so I would total up the folders I wanted to copy and choose the ones that would be close to that amount. I would sometimes get the error message that I would have to remove something b/c there wasn't enuf room. When I went to the properties to check the pie chart, it wouldn't add up. I would just have an "oh well" attitude and copy a little more at a time until I got the error message again and knew that it was correct, this time!

Yesterday, I was copying from data CDs to a folder on my desktop of things to put on my flash drive. Here is one example of this happening: I put a CD in and when it opened, I hovered the mouse over the folder and got that this folder was 576MB. When I rt clkd the empty area for the properties, the pie chart showed "free space" as 20.2MB and that the capacity was only 77.2MB. "Used space" was ONLY 57MB. Why does this happen? It was the same for everyone of the 15 CDRs I copied - pie chart never once was the same as the actual true amt I got when I hovered over that first folder.

Have I been using the properties part of a data CDR I've burned improperly??? I can't be the only person this has happened to and I wish there was a CD burning 101 where it actually explained this part of Windows. I google searched to no avail. Any help will be greatly appreciated.

I have WindowsXP-Pro on an HP Pavilion Media Center PC but this has happened with every PC I've owned.

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Possibly Open and Closed sessions?

In reply to: Pie chart in properties of a data CD

This is something you can look up on Google, but CDRs and CDR/RWs have to Open a session to burn, (copy), any data to them.

Often, that session is not closed after the burn unless specifically selected by the user at the start of the burn process. That allows other data to be added to the session. But, the consequences are that such CD's cannot be used on other systems.

If the session is closed, then that finishes off the process and no more data can be added to that session. However, the disk can be used again to burn data to a new session, but only to the unused portion is left. The risk with that is that only one session may be visible for use.

It's a bit of a minefield, and you may want to do your own checking/research on this.


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Possibly open and closed sessions?

In reply to: Possibly Open and Closed sessions?

Thankyou Mark - that makes sense! That might be what it is about. I will google search it more. Only thing I don't agree with in what you said, is that every CD I make is multi-sessioned and works in every computer I've ever wanted to use them in and I never close the session.

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Good point.

In reply to: Possibly open and closed sessions?

I can't answer that, except I may have read somewhere that if the same software you used to burn the CD is installed on the other computers, then that may be the reason.

But don't quote me on that, Happy


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