Thanks for your replay, indeed my machine setting is as below:
My DVD drive is RW and my machine has Nero Express installed only. I first use the NeroCmd.exe to write file A1.txt, A2.txt and directory Dir1, Dir2 onto a blank DVD-RW and this operation is ok. Later, I use explorer.exe to view the DVD-RW, the above files and directories is presented. I highlight A1.txt and then delete it, the system prompts me the file is read-only and failed to delete. On the other hand, I can use the Nero Express to delete the A1.txt. My question is:
Can I use the NeroCmd.exe to delete the A1.txt file?