diff --git a/src/vid_nv_rivatnt.c b/src/vid_nv_rivatnt.c
index 115330fc0..c84c11cb8 100644
--- a/src/vid_nv_rivatnt.c
+++ b/src/vid_nv_rivatnt.c
@@ -1164,7 +1164,7 @@ static void rivatnt_pci_write(int func, int addr, uint8_t val, void *p)
     {
       uint32_t addr = (rivatnt->pci_regs[0x32] << 16) | (rivatnt->pci_regs[0x33] << 24);
       //                        pclog("RIVA TNT bios_rom enabled at %08x\n", addr);
-      mem_mapping_set_addr(&rivatnt->bios_rom.mapping, addr, 0x10000);
+      mem_mapping_set_addr(&rivatnt->bios_rom.mapping, addr, 0x8000);
       mem_mapping_enable(&rivatnt->bios_rom.mapping);
     }
     else
@@ -1255,7 +1255,7 @@ static void *rivatnt_init()
   rivatnt_in, rivatnt_out,
   NULL, NULL);
 
-  rom_init(&rivatnt->bios_rom, "roms/rivatnt.bin", 0xc0000, 0x10000, 0xffff, 0, MEM_MAPPING_EXTERNAL);
+  rom_init(&rivatnt->bios_rom, "roms/NV4_creative.rom", 0xc0000, 0x8000, 0x7fff, 0, MEM_MAPPING_EXTERNAL);
   if (PCI)
     mem_mapping_disable(&rivatnt->bios_rom.mapping);
 
@@ -1318,7 +1318,7 @@ static void rivatnt_close(void *p)
 
 static int rivatnt_available()
 {
-  return rom_present("roms/rivatnt.bin");
+  return rom_present("roms/NV4_creative.rom");
 }
 
 static void rivatnt_speed_changed(void *p)