I noticed that the capacity of the disc was significantly reduced after the format...why is that?
>>The UDF format uses part of the disc for the file system.
Can I return the disc to the factory state..I mean before the formatting, and will the disc still be accessiblee by ordinary CD drives?
>>Yes, you can erase it. This process removes the file system and data from the disc.
How can I make sure that people with ordinary CD-ROMs can read my CD-RW disc?
>>To put it simply.. don't use UDF. Create your CD using a normal Mode 1 data track and finalize it. You can do this with Nero.
Is it necessary that the disc should be formatted using UDF software?
>>No. Only if you want to packet write.
"Blu-ray is just a bag of hurt." - Steve Jobs