Here is the DRM Map for E398/ROKR. Credits to nitrocs, simuki, Zwick, CheapoDude, rikee and zra.
SMS ANIMATIONS:12 - sms recieve anim
13 - sms recieve anim (small)
16 - sms send anim
584 - SMS recieve anim (small)
17 - Browser start splash
18 - java splash
31 - play button
32 - pause button
33 - stop button
34 - rewind button
35 - fastfoward button
83 - media control base
111 - "extras" menu anim
179 - BT(ROKR E2)
208 - java active icon (
)
218 - TF card menu icon
225 - SMS icon (373_70R)
282 - engineering icon
288 - camera menu anim
Battery Status icons:329 - battery empty
330 - battery charging empty
331 - batter 1 bar
332 - battery charging 1 bar
333 - battery 2 bar
334 - battery charging 2 bar
335 - battery full
336 - battery charging full
337 thru 362 - calculator buttons
SIGNAL ICONS:387 - GPRS secure packet
388 - GPRS unsecure packet
389 - GPRS connected icon
391 - call in progress icon
392 - line 1 icon
393 - line 2 icon
394 - SMS icon (ROKR E2)
403 - Antenna "No Signal" icon
404 - GPRS ready icon
407 - data activity icon
457 - java active icon
473 - roam icon
608 - Bluetooth connection
685 - Bluetooth
1552 - EDGE icon
NETWORK SIGNAL ICONS:411 - signal 1 bar
412 - signal 2 bar
413 - signal 3 bar
414 - signal 4 bar
415 - signal 5 bar
RINGSTYLE ICONS:416 - loud
417 - soft
418 - silent
419 - vibrate
1569 - vibe&ring icon (next to the battery)
VIDEO CAMERA ICONS:431 - video camera menu animated
432 - video camera menu static
USB SETTINGS ICONS:1580 - USB settings animated
1597 - USB settings static
iTUNES ICONS:1996 - iTunes animated
1998 - iTunes static
VOICE DIAL ICONS:1485 - iTunes animated
1496 - iTunes static
PICTURE/PHOTO ICONS:1477 - New Picture icon
478 - New Photo Album icon
DATA TRANSFER ANIMATIONS:450 thru 453 - data transfer anim
MESSAGES SECTION ICONS:394/395/487 - Icon for Inbox Message
486 - Delivery Report icon
487 - SMS read list icon
488 - Locked SMS Read
489 - Locked SMS Read with Attachment
492 - Icon for Outbox (Sent)Message
506 - SMS read with attachment icon
507 - SMS unread icon
508 - SMS unread with attachment icon
1398 - SMS w/ attachment icon
1500 - mobile qq splash
1580 - USB menu anim
1591 - SMS sending in progress menu icon
1840 - OBEYMEMOTO splash
MULTIMEDIA SECTION ICONS:152/213 - Icon for Video file
205 - Icon for Audio file
GAMES & APPS SECTION:208 - Icon for Java app installed
PHONE STATUS ICONS:217 - Icon for Phone Memory
218 - Icon for Transflash
PHONEBOOK NUMBER TYPE ICONS:253 - Icon for Fax
254 - Icon for Home
255 - Icon for Mobile
256 - Icon for Pager
258 - Icon for Work
259 - Icon for Main
