I am pretty sure that MT rainer OS support is only in win XP/2000 so you will not get integral support from WIN 98 For Win 98 to read it you will need to use easy reader as descriped above.
Your current packet writing software may be conflicting with easy reader, try removing it and see what happens.
My advice to you is to is to toss whatever packet writer you are currently using and get INCD 3.31. INCD is compatable with win 98 and will give you the ability to read/write in MT Rainer format.
In you use INCD 3.31 you will not need easy reader because it is inbuilt!
does CD-MRW available ?
if I have CD-MRW CD, will I be able to use it without software like InCD and without easyreader from nero?
No because your OS (win 98) does not support MT RAINER, You can use Easy Reader to give you os the ability to read but not write (somone correct me if I am wrong)
However if you wish to be able to write/read in MT RAINER INCD 3.31 should cure all of your woes! Either that or move up to Win XP.
As a bit of a plug for Microsux Win Xp is actually a pretty good OS it is far more stable then win ME wich really sucked the bag
OK I am typed out hope this helps